高大模板工程中()需要进行专家论证审查。

A、水平构件模板支撑系统高度超过8m 

B、超过6层楼高度 

C、水平混凝土构件跨度大于18m 

D、集中线荷载大于15kN/m2 

E、施工总荷载大于10kN/m2

用方框内所给词的适当形式填空。

1. I ________ to ride a bike when I was four years old.

2. Students usually ________ learning English in primary schools.

3. They ________ a big party to celebrate （庆祝） the harvest last October.

4. Professor Li stopped ______ after he had a heart disease.

5. I ________ Lucy last night, but she was not at home.