通过查看平面图立管编号，可查清系统立管（）和布置位置。 A.规_爱下问搜题

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问题单项选择题

通过查看平面图立管编号，可查清系统立管（）和布置位置。

A.规格

B.数量

C.质量

D.走向

答案

参考答案：B

完形填空

完形填空。

     Here  1  a photo of Mike's family. The man is  2 father. A  3 is behind Mike. She is  4 . 5 teachers.
A girl is  6 photo, too. She's Mike's sister, Lucy Brown. Mike and his sister are in the same  7 . But they  8
in the same grade. They look  9 father. They are  10 .

( )1. A. is
( )2. A. Mike
( )3. A. boy
( )4. A. his mother
( )5. A. She's
( )6. A. in a
( )7. A. school
( )8. A. don't
( )9. A. like his
( )10. A. English

B. are
B. Mike's
B. girl
B. his sister
B. You're
B. in the
B. class
B. aren't
B. at his
B. Canada

C. be
C. Mikes'
C. woman
C. his father
C. They're
C. on a
C. grade
C. are
C. like their
C. England

问答题简答题

简述煤的元素分析常用四种表示方法。