一般砖混结构的电梯井道采用（），稳固导轨架，既简单又方便。A_爱下问搜题

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问题单项选择题

一般砖混结构的电梯井道采用（），稳固导轨架，既简单又方便。

A．埋入式

B．焊接式

C．预埋螺栓固定式

D．对穿螺栓固定式

答案

参考答案：A

完形填空

完形填空。

Boy: Look! This is my mother.
Girl: Wow! How beautiful. What does 1    do?
Boy:    2    is a singer. Because she likes    3   .
Girl:    4    does she work?
Boy: She    5   in a big company.
Girl: How    6   she go to work?
Boy: She goes to work on    7 .
Girl: What's her hobby?
Boy: She likes listening to    8   .

( ) l. A. he
(    ) 2. A. She
(    ) 3. A. dancing
(    ) 4. A. What
(    ) 5. A. work
(    ) 6. A. is
(    ) 7. A. bike
(    ) 8. A. music

B. she
B. It
B. singing
B. Where
B. works
B. do
B. bus
B. picture

C. it
C. He
C. swimming
C. How
C. working
C. does
C. foot
C. phone

单项选择题

下列哪一型的人类 * * 瘤病毒常与Buschke-loewenstein肿瘤有关（）。

A.HPV-6型

B.HPV-16型

C.HPV-11型

D.HPV-18型

E.HPV-45型