管输天然气时,如果天然气中所含水分过多,会给管道运行带来什么问题?一般依靠测量哪个参数来监视含水量?采用什么仪器测量该参数,原理如何?
查看答案
She chose ginger _____ garlic for cooking the Greek food.
A. taking place of
B. replace of
C. place of
D. instead of
有效数字2位的是:()
A. pK=7.263
B. pH= 13.14
C. 7.8200
D. 5.301
E. 0.001
She is ______ more careful driver of the two.
A. a
B. the
C. an
D. /
We will have a lecture ____ Friday afternoon.
A. in
B. at
C. on
D. /