水库在正常运用的情况下,为满足设计的兴利要求在供水期开始时应蓄到的最高水位称()。
A、校核洪水位
B、设计蓄水位
C、防洪限制水位
D、防洪高水位
参考答案:B
Mike wasn't at home yesterday. He ______ to help with Jenny's English. [ ]
A. was asking
B. is asked
C. is asking
D. was asked
在第五十一回里,袭人不在,宝玉和晴雯之间的感情有何显示?