题目内容：
燃气管道输气压力小于0．01MPa时称为（ ）燃气管道。
A．低压 B．中压B
C．次高压B
D．高压B
参考答案：
答案解析：
单选题：燃气管道输气压力小于0．01MPa时称为（ ）燃气管道。
- 题目分类：市政公用工程
- 题目类型：单选题
- 查看权限：VIP
B．中压B
C．次高压B
D．高压B
B．中压B
C．次高压B
D．高压B
Theword"proper"inthefirstlineofthesecondparagraphmeans______
Theword"proper"inthefirstlineofthesecondparagraphmeans__________． A．small B．big
Whichofthefollowingwordsbestdescribesmum?
Whichofthefollowingwordsbestdescribesmum? A．Polite． B．Patient． C．Changeable． D．C
第49题应选
第49题应选 A．began B．drove C．ran D．moved
What does the woman want to do?
What does the woman want to do?A．Visit the clothing company tomorrow． B．Apply fo
What will the woman do this evening?
What will the woman do this evening?A．Go to disco． B．Write her paper． C．Visit a