2万吨表活剂装置中,成品罐区的成品储罐的容积为()m3。
A.20
B.30
C.40
D.50
参考答案:D
用括号内动词的适当形式填空。
1. What time ______ your mother______ (go) to work every day?
2. Mrs. Black______(not work) in the factory.
3. Tom usually______ (come) to school at seven in the morning.
4. Jack______ (swim) in the river now.
5. Sue______ (clean) the windows every day.
6. Please be quiet! My parents ______ (sleep).
7. I ______ (not feel) well. I have a headache.
8. They ______ (go) to visit their grandparents last Sunday.
9. Everybody ______ (get) angry or happy sometimes
10. It's easy ______(stay) healthy.
Paula _________ a special mention for all the donations he had ________.
A.purchased; gave
B.urged; did
C.deserved; made
D.occupied; made