为了防止混油,质量管理人员或化验员在油品收发作业前,应对所用的()、油罐等进行认真检查核对,保证与收发油品的一致性。
(A)油泵
(B)管线
(C)阀门
(D)上述三项
参考答案:D
补全对话。(每空一词)
Molly: Hey, Hector! What are you doing 1. _____ vacation?
Hector: I'm visiting my cousins 2. _____ Canada. I'm leaving 3. _____ Friday.
How 4. _____you, Susan?
Susan: I'm 5. _____ to sports camp.
Molly: Oh, cool! 6. _____ are you going?
Susan: On the llth.
Molly: 7. _____ great.
Hector: How about you, Molly? What are you doing for 8. _____?
Molly: 9. _____ going to the beach 10. _____ my family. We're leaving this
weekend.
"GB50236--82"这一标准编号中,"50236"是指()。
A.标准代号
B.标准顺序号
C.标准年号