人孔铁件质量控制点有哪些?
参考答案:
1、电缆支架;
2、人孔口圈(井圈);
3、拉力环;
4、积水罐等安装。
The new bridge is ________ the one built last year.
A.three times as wider as
B.three times the width of
C.three times the width
D.as three times as
可使用非水碱量法测定含量的药物有
A.硫酸阿托品
B.对乙酰氨基酚
C.盐酸氯丙嗪
D.地西泮
E.维生素A