关于黏液表皮样癌，正确的是 A．好发于儿童 B．大多数发生于男性 C．多见于舌下腺

--- I’m sorry to keep you waiting. I’ll make short work of this.

--- ______. I’m not in a hurry.

A． Take it easy.

B． Take your time.

C． Not at all

D． Do as you like.

Read and answer. （读句子，根据实际情况回答问题）

1. How many students are there in your class?

___________________________________________

2. How many girls are there in your class?

___________________________________________

3. Do you have a canteen in your school?

___________________________________________

4.  Do you have a library in your school?

___________________________________________

5. Do you have lunch in the canteen?

___________________________________________

6. — Where is the library?

    — It's on the ______ floor.

色甘酸钠平喘作用的机制是

A．松弛支气管平滑肌

B．拟交感作用，兴奋β2受体

C．对抗组胺，慢反应物质

D．抑制过敏介质的释放

E．抑制磷酸二酯酶，使支气管平滑肌细胞内cAMP积聚

加尔文教的观点中两个国度是（）。

A.神圣国度和罪恶国度

B.上帝国度和地狱国度

C.上帝国度和世俗国度

D.世俗国度和罪恶国度

有关调查资料显示，参加展览会是企业成本最低、收效最好的营销方式。