关于引起补充氢压缩机联锁停运的原因,下列说法不正确的是()。
A.润滑油压力低
B.活塞注油器流量低
C.氮封压力低
D.吸入罐液位高
参考答案:C
They felt ________ it was high tax and low income ________ contributed to the extreme misery of the working people at the bottom of the ladder.
A./;that
B.that; which
C.that; what
D./; which
读下图,回答下列各题。
图示大部分地区海拔在()
A.200米以下
B.200~1000米
C.800~1000米
D.大于1000米