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There is only _______ water in the bottle. ( )
A、 a bit
B、 a little of
C、 a bit of
D、 a few
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4．— Did you have anyone ______the trees?—Yes，l had the trees ______．A． to water ;waterB． to water; wateredC． water ; to be wateredD． water; watered
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Flashback is enabled for your multitenant container database (CDB), which contains two pluggable database (PDBs). A local user was accidently dropped from one of the PDBs.You want to flash back the PDB to the time before the local user was dropped. You connect to the CDB and execute the following commands:SQL SHUTDOWN IMMEDIATE SQL STARTUP MOUNT SQL FLASHBACK DATABASE to TIME TO_DATE (‘08/20/12’ , ‘MM/DD/YY’)”;Examine following commands:1. ALTER PLUGGABLE DATABASE ALL OPEN;2. ALTER DATABASE OPEN;3. ALTER DATABASE OPEN RESETLOGS;Which command or commands should you execute next to allow updates to the flashback back schema?（）A. Only 1B. Only 2C. Only 3D. 3 and 1E. 1 and 2
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In?project?net work?diagram,the?number?of?critical?path?is（）。A.none
B.only?one
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D.one?or?more
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Which of the following does the author cite in support of the quotation from the United Nations Scientific Committee on the Effects of Atomic Radiation？( )Ⅰ.Strontium 90 and carbon 14 become incorporated into the body and deliver radiation for an entire lifetime.Ⅱ.An abnormally high percentage of patients with arthritis of the spine who were treated with X rays contracted cancer.Ⅲ.A high incidence of cancer appeared among children of mothers who had been given prenatal pelvic X rays. A.Ⅰ only.
B.Ⅰ，Ⅱ，and Ⅲ.
C.Ⅰ and Ⅱ only.
D.Ⅱand Ⅲ only.
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Of the following sound combinations， only （） is permissible according to the sequential rules in English.AkiblBbkilCilkbDilbk
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