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单选题
The farmers in this country can improve their _____ by using better seedlings and more fertilizer.
A
growth
B
yield
C
harvest
D
gain
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参考解析
解析：
句意：乡下的农民可以通过栽种更好的秧苗和施以更多的肥料来增加粮食产量。yield产量；利润，红利率。growth生长，成长。harvest收获。gain获得。
句意：乡下的农民可以通过栽种更好的秧苗和施以更多的肥料来增加粮食产量。yield产量；利润，红利率。growth生长，成长。harvest收获。gain获得。
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考题
Which two statements are true regarding the USING and ON clauses in table joins?（）A、Both USING and ON clauses can be used for equijoins and nonequijoins B、Amaximum of one pair of columns can be joined between two tables using the ON clause C、The ON clause can be used to join tables on columns that have different names but compatible data types D、The WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause
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考题
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