试说出普通水准仪的使用步骤？
参考答案：
安置、粗平、瞄准、精平、读数。
________, he has finished his job ahead of time.
A．As is expected
B．Which is expected
C．It is expected
D．It is as expected
热力管道支吊架的形式、材料、加工尺寸及焊接应符合施工图样要求。( )
