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66、在鱼洗实验中，下列哪个说法是正确的？ In the fish washing experiment, which of the following statements is true？
A.当鱼洗器壁的振动频率越来越接近于鱼洗固有频率时，产生共振现象； Resonance phenomenon occurs when the vibration frequency of the wall of the fish washer is closer and closer to the natural frequency of the fish washer;###SXB###B.当鱼洗器壁的振动频率大于鱼洗固有频率时，产生共振现象； Resonance phenomenon occurs when the vibration frequency of the wall of the fish washer is greater than the natural frequency of the fish washer;###SXB###C.当鱼洗器壁的振动频率小于鱼洗固有频率时，产生共振现象； When the vibration frequency of the fish参考答案和解析
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更多 “66、在鱼洗实验中，下列哪个说法是正确的？ In the fish washing experiment, which of the following statements is true？A.当鱼洗器壁的振动频率越来越接近于鱼洗固有频率时，产生共振现象； Resonance phenomenon occurs when the vibration frequency of the wall of the fish washer is closer and closer to the natural frequency of the fish washer;###SXB###B.当鱼洗器壁的振动频率大于鱼洗固有频率时，产生共振现象； Resonance phenomenon occurs when the vibration frequency of the wall of the fish washer is greater than the natural frequency of the fish washer;###SXB###C.当鱼洗器壁的振动频率小于鱼洗固有频率时，产生共振现象； When the vibration frequency of the fish” 相关考题
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Which of the following statements is NOT true about vagina? ()
A、It is a small sensory organ, which is located toward the front of the vulva where the folds of the labia joinB、It is a female’s external reproductive organC、It is a muscular, hollow tube that extends from the vaginal opening to the uterusD、It is shaped like an upside-down pear, with a thick lining and muscular walls
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Which of the following statements is NOT true?A．Sir Ludwig Guttmann is an early organizer of the games for the disabled.B．Sir Ludwig Guttmann is an injured soldier.C．Sir Ludwig Guttmann is from Germany.D．Sir Ludwig Guttmann is welcomed by the British.
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Which of the following statements about Leopold and Rudolph Blaschka is TRUE?A. They were brothers.B. They were artists.C. They were florists.D. They were farmers.
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Which of the following statements about testing software with data is (are) true?Ⅰ.The primary purpose of such testing is to find errors.Ⅱ.Such testing can demonstrate the existence of errors but cannot demonstrate the absence of errors.A．NeitherB．I onlyC．ⅡonlyD．Ⅰand Ⅱ
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Which of the following statements are true of collectivist culture?
A、Disclosure of private feeling is distasteful.B、People are suspicious of outsiders.C、Uniformity is not highly thought of.D、there is a positive attitude about words of disagreement.
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Which of the following statements is true? Accounts payable are ______.A．debts owed to suppliersB．related to purchases of goods on an open accountC．current liabilitiesD．all of the above
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Which of following statements about testing software with data is (are) true?Ⅰ.The primary purpose of such testing is to find errors.Ⅱ.Such testing can demonstrate the existence of errors but can not demonstrate the absence of errors.A．NeitherB．Ⅰ onlyC．Ⅱ onlyD．Ⅰ and Ⅱ
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Which of the following statements can best be inferred from the passage?A. Fishes only "speak" to communicate with each other.B. Researches are now being made to study the significance of fish sounds.C. Sea animals have a sharper hearing ability than men.D. Sounds made by fish cannot be transmitted through the air.
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Which of the following statements about language is NOT true?A.Language is a system
B.Language is symbol
C.Animals also have language
D.Language is arbitrary
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Which of the following statements is NOT true?（）AThe open field system provided a good opportunity to experiment.BThe open field system wasted land.CThe open field system was wasteful of labor and time.DThe open field system made livestock farming difficult.
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Which of the following statements is NOT true?（）A、The open field system provided a good opportunity to experiment.B、The open field system wasted land.C、The open field system was wasteful of labor and time.D、The open field system made livestock farming difficult.
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Which of the following statements is true regarding the VERSIONS BETWEEN clause？（） A、 The VERSIONS BETWEEN clause may be used in DML statements.B、 The VERSIONS BETWEEN clause may be used in DDL statements.C、 The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D、 The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
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Which ONE of the following statements about Domino Enterprise server is true？（）A、Can host Active Server Pages Web sitesB、Can host PHP Web sitesC、Includes a DB2 serverD、Includes an integrated Web application server
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Which of the following statements are true？（） A、 The equals（） method determines if reference values refer to the same object.B、 The == operator determines if the contents and type of two separate objects match.C、 The equals（） method returns true only when the contents of two objects match.D、 The class File overrides equals（） to return true if the contents and type of two separate objects match.
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Which of the following statements are true regarding the Recycle Bin？（）A、 The Recycle Bin is a physical storage area for dropped objects.B、 The Recycle Bin is a logical container for dropped objects.C、 The Recycle Bin stores the results of a Flashback Drop operation.D、 The objects in the Recycle Bin are stored in the tablespace in which they were created.
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多选题If p and q are primes greater than 2, which of the following statements must be true? (Indicate all such statements.)Ap + q is evenBpq is oddCp2-q2 is even
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多选题Concerning the figure below, if a =b, which of the following statements must be true? (Indicate all such statements.)Ac=dBl and k are parallelCm and l are perpendicular
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单选题Which of the following statements is NOT true?（）A
The open field system provided a good opportunity to experiment.B
The open field system wasted land.C
The open field system was wasteful of labor and time.D
The open field system made livestock farming difficult.
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多选题Which of the following statements are true? (Indicate all such statements.)Aτ(5) =τ(7)Bτ(5) τ(7) =τ(35)Cτ(5) + τ(7) =τ(12)
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单选题Which of the following statements about the golf club is NOT true?A
It’s at the top of the cliff.B
They were not allowed to be in the club.C
They parked the car near the club.
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单选题Which of the following statements is true according to the passage?A
Earthquake destruction is declining.B
Earthquake forecast is improving.C
Man is no longer fearful of earthquakes.D
Man is capable of conquering earthquakes.
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单选题Which of the following statements is true according to the news?A
In Vietnam there are three people died of suspected bird flu.B
The virus has spread across the entire Thailand.C
The health workers in Thailand conducted stringent surveillance measures.
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单选题Which of the following statements is NOT true according to the passage?A
New England winters are cold.B
Some taxi drivers are impolite.C
The U. S. A is a popular place for tourists.D
Hotel staff are often sympathetic.
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多选题Which of the following statements are true？ （）ARC4 is a stream cipherBStream ciphers require paddingCAES is a block cipherDDES and 3DES are stream ciphersEAES is a stream cipherFAES， DES， and 3DES can be used as HMAC algorithms
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单选题Which of the following statements is true?A
Scientists have solved the mystery about the fish killer.B
More studies need to be made about the fish killer.C
It is proved that the algae are reducing fish populations.D
Humans have already been affected by the toxin.
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单选题Which of the following statements is true regarding the VERSIONS BETWEEN clause？（）A
The VERSIONS BETWEEN clause may be used in DML statements.B
The VERSIONS BETWEEN clause may be used in DDL statements.C
The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.D
The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.
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单选题Which of the following statements is not mentioned as serious consequences of coral loss?A
A reduction in tourism.B
Increased coastal damage from hurricanes.C
The extinction of the estimated 1 million species of fish.D
The collapse of reef fisheries.
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