高速风力机的风轮,叶片一般由()个叶片和轮毂组成。
A、2~3
B、较多
参考答案:A
We suggest that you file a claim ______ the shipping company for all the losses incurred as a consequence of failure to ship the goods ______ Order No. 123 in time.()
A. against, unless
B. for, in
C. against, in
D. against, under
高温环境下人体胃酸分泌减少,食欲减退的主要原因是()
A.散热增强使血液重新分配
B.消化液分泌减少
C.胃肠道功能下降
D.大量出汗使氯化钠丢失增加
E.内脏血管收缩