以天然气为原料,小型合成氨装置空压站仪表风再生干燥器15min自动切换一次。
参考答案:错
解析:以天然气为原料小型合成氨装置空压站仪表风再生干燥器5min自动切换一次。
流行性乙型脑炎的病原菌是()
A.乙型链球菌
B.β-溶血性链球菌
C.柯萨奇病毒
D.乙型脑炎病毒
E.脑膜炎双球菌
Rosa knows she is the eldest of the three children in the family, and she must work hard to _______ the other two. So she does.
A.set an example to
B.make the most of
C.take a look at
D.play a trick on