如何避免样品寄出后石沉大海()
A.货代
B.收汇
C.物权
D.运输
E.责任
F.交货
参考答案:A, B, C, D, E, F
We’ll be free tomorrow, so I suggest ____ to the history museum.
A.to visit
B.visiting
C.we should visit
D.a visit
正常血钾值的范围为()
A.2.5mg/L~3.5mg/L
B.3.5mg/L~5.5mg/L
C.3.5mg/L~5.5mg/L
D.2.5mg/L~3.5mg/L
E.25mg/L~35mg/L