In the speaker's opinion, what is the best place for a man to keep his wallets?
A.A side pocket of his jacket.
B.The top pocket of his jacket.
C.The back pocket of his tight trousers.
D.A side pocket of his trousers.
第1题
谷类作物的产量构成因素为()。
A.播种面积、株数和粒重
B 单位面积穗数、穗粒数和粒重
C.播种面积、穗粒数和粒重
D.播种面积、亩穗数和粒重
第3题
小麦三个产量构成因素中,()是构成小麦产量的基础。
A.穗数
B.穗粒重
C.每穗粒数
D.千粒重
第4题
禾谷类作物单位面积产量构成的因素是()
A.株数、每株粒数、每穗实粒数
B.穗数、每穗实粒数、粒重
C.穗数、粒数、粒重
D.株数、每穗实粒数、粒重
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