客户在( ),应将咨询合同草案发给工程咨询公司。
A.收到投标文件后
B.开标前
C.发送投标邀请函时
D.签订合同前
参考答案:C
输液发热反应的常见原因是
A.输入液体过多
B.输入速度过快
C.输入致热物质
D.输液时间过长
E.以上均不对
Listen to me, Dick. If you worry about examinations, you _____ fail, so you _____ worry. [ ]
A. may; needn't
B. can; won't
C. must; can't
D. must; shouldn't