前列腺液的主要功能是()
A.维持精浆适当的pH
B.参与精子的能量代谢
C.抑制细菌生长
D.含有蛋白水解酶,使精液液化
E.法医学鉴定
参考答案:A, B, C, D
He has got himself into a dangerous situation _____ he is likely to lose control over the plan. [ ]
A. where
B. which
C. that
D. why
谈判手的“战斗式”坐姿表现为坐沙发时,手扶沙发背,身靠沙发,平视对手,面带微笑。