She chose ginger _____ garlic for cooking the Greek food.
A. taking place of
B. replace of
C. place of
D. instead of
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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. /
使用容积式流量计进行测量时,介质的粘度越大,流量计的泄漏量越(______)。