口对口吹气法人工呼吸每分钟约吹（）次。A、14—16 B、10—12 C、17—20

是SLE的标准筛选试验，但特异性小的是（）

A.抗核抗体

B.抗Sm抗体

C.抗双链DNA抗体

D.抗磷脂抗体

E.类风湿因子

用所给词的适当形式填空。

1.  How many_______ (banana) do we need?

2.  He drank so _______ (many) that he couldn't stand.

3.  The _______  (sheep) are eating grass on the hill.

4.  They can't speak_______  (France).

5.  The water in the pot is _______ (boil) now.

6.  Let me put _______  (other) slice of bread on the top.

7.  There are some_______  (slice) of turkey on the plate.

8.  We need two_______ (teaspoon) of yogurt.

9.  Would you like to have some_______ (potato) for lunch?

10. The girl is_______ (put)  her books on the bookshelf.

用重型击实法求得路堤填料最大干密度为2.18 g/cm³，规范要求压实度为96%，下面为各测点的工地干密度，压实合格的测点有( )。

A．2.08g/cm³

B．2.00g/cm³

C．2.10g/cm³

D．2.20 g/cm³

圈闭预探的最终目的是（）。

露点的单位是（）

A.m

B.s

C.℃

D.K