奶及奶制品有利于儿童青少年生长发育，增加骨密度，但是不能推迟其成年后发生骨质疏松的年龄（）
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He concluded his speech with a remark that failure ____the mother of success.
A. must have lasted
B. will have lasted
C. would last
D. has lasted
卫生手消毒后医务人员手表面的细菌菌落总数应≤10CFU/cm2。（）
The poor lady ？s pang must have been increased when she thought of her rival, ______ was a favorite of the whole Court, ______ she was neglected.
A. she; there
B. who; where
C. her rival; at the Court
D. the latter; but
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