以下关于投标文件编制的表述不正确的是( )。 A．投标文件应当对招标文件提出的实质

-I went to see you yesterday evening. But you weren't in. Where were you then?

-I _________ a walk by the lake with my husband.[ ]

A. was having

B. am having

C. have had

D. have

搅拌加速澄清池构造？

（）既是建筑企业的生命，又是企业发展的永恒主题。

A.工程质量

B.文明施工

C.安全生产

D.科学管理

分娩时，胎头复位及外旋转的角度为（）.

A.15°

B.45°

C.50°

D.80°

E.90°

脉形宽大，来盛去衰是指（）

A.洪脉

B.大脉

C.滑脉

D.实脉

E.濡脉