以下选项说法正确的是( )。A．该地9岁女孩的平均身高是127.厘米 B．该地14

阅读下列对话，判断所给句子的对(√)错(×)。

Ann: Hello, Diana.

Diana: Hello, Ann.

Ann: This is Miss Read. She is our Chinese teacher.

Diana: How do you do?

Miss Read: How do you do? Are you new here?

Diana: yes, I am.

Miss Read: What's your name?

Diana: Diana Rixon.

Miss Read: Can you spell it?

Diana: yes, D-I-A-N-A, R-I-X-O-N, Diana, Rixon.

Miss Read: Are you in Class Three?

Diana: Yes, I am.

Ann: Oh, we are in the same class.

Miss Read: Welcome to our class.

(     )1. Miss Read is a teacher.

(     )2. Diana is a teacher, too.

(     )3. Ann is a student.

( )4. Diana is new here.

(     )5. Diana is in Class Two.

汽车行业最早采用流水生产线大批生产汽车的公司是（）。

A.标致公司

B.福特公司

C.大众公司

D.通用公司

地下市政管线工程按管线敷设形式分为（）。

A.搭设

B.预埋

C.架空架设线

D.压力管道

E.地下埋设线路

从下述答案中，选出三种用呼气相X线片诊断时有重要价值的疾病（）

A.肺炎

B.支气管异物

C.肺气肿

D.细支气管炎

E.胸膜炎

* * 毛滴虫适宜的生长环境为

A．pH＜5
B．pH5.5～6.0
C．pH6.0～6.5
D．pH6.5～7.5
E．pH＞7.5