常规高空气象探测资料的调查项目包括( )。 A．探空数据层数 B．降水类型 C．相

土壤抗蚀性

虎潜丸功效与作用

髓腔，一般认为是（）。

A.缩小了的牙体外形

B.扩大了牙体外形

C.等于牙体外形

D.不确定

E.与牙体外形无关

完成下列对话：______。

A：Good morning, this is Miss Li, secretary to Mr.Smith of ABC Company. ______
B：This is Zhang Hai from Beijing. ______A：I am sorry, ______. May I take a messageA．Can I help you；May I speak to Mr.Smith；please hold on
B．May I speak to Mr.Smith；Can I help you；Mr.Smith is unavailable
C．Can I help you；May I speak to Mr.Smith；Mr.Smith is unavailable
D．May I speak to Mr.Smith；Can I help you；please hold on

上海住房公积金存款利率是多少？