建筑安全技术拆除( )模板时，为避免突然整块坍落，必要时应先设立临时支撑，然后进行

免收运费的货物、站界内搬运的货物免收（）。

小题1: We all know that Millie has a   ▲  (宠物) dog named Eddie.

小题2:We are going to celebrate the 90thbirthday of our Party on   ▲  (七月)1st, 2011.

小题3: A strong wind came from behind   ▲  (突然) and we lost the umbrella in the wind.

小题4:The roads are becoming more and more   ▲  (拥挤的) because of too much traffic.

小题5:I’d love to join you in the camping, but I   ▲  (允诺) to go cycling with John yesterday.

小题6:My mother was so tired that she fell a ▲  when watching TV.

小题7: E ▲  fresh vegetables and doing enough exercise will be good for your health.

小题8:Kung Fu Panda II is a fantastic film and I want to see it. But I can’t d ▲ when to go.

小题9:It’s dangerous to run w ▲  in all directions when an earthquake happens.

小题10: We are good friends and seldom speak or act a ▲ each other.

小题11: My family live on the   ▲  (five) floor of the tall building.

小题12:Simon and Linda didn’t tell us the news. They wanted to keep the secret to   ▲  (they).

小题13: Young   ▲ (read) are crazy about Guo Jingming’s books.

小题14:Listen! The lovely birds are singing nicely and   ▲  (soft) in the trees.

小题15:Ricky had a   ▲  (please) trip to Lushan Mountain last spring.

主动攻击可以分为5类，分别是______、重放、消息篡改、拒绝服务和分布式拒绝服务。

关于巴比妥类药物鉴别中的铜盐反应，以下叙述正确的是（）

A.含硫巴比妥类药物呈紫色或生成紫色沉淀

B.含硫巴比妥类药物呈绿色

C.硫巴比妥类药物呈紫色或生成紫色沉淀

D.一般巴比妥类药物呈绿色

E.凡是巴比妥类药物均呈紫色或紫色沉淀

依照施工合同示范文本通用条款规定，施工合同履行中，发包人收到竣工结算报告及结算资料后56天内仍不支付，承包人有权( )。

A．留置该工程

B．与发包人协议将该工程折价

C．直接委托拍卖公司拍卖该工程

D．申请人民法院将该工程依法拍卖

E．就该工程折价或拍卖的价款优先受偿