油动机的富裕行程不能太大,如果上限太大将影响调节质量,下限太大将使汽轮机甩负荷时因迟缓率大而超速过高。
参考答案:错
--- Hi ,guy! How many plans have you made for the coming summer holiday ?
--- at all. Perhaps I’m going to ______ it with my friends .
A.Nothing; cost
B.None; spend
C.None; take
D.Nothing; pay
在劝谏过程中不是强谏而是采取曲谏形式的是()
A.箕子
B.比干
C.晏子
D.微子