商务汇款批量冲正交易适用于（）.A.按址汇款 B.入账汇款 C.密码汇款 D.收汇汇

Mary likes dogs very much. She has a pug-dog. It is white. It has big eyes and ears. It is small but it is cute and beautiful.

Every morning, the dog eats some bread and meat. They are the dog’s favorite food. When Mary goes to school, the dog always waits for(等待) her at the gate. When she comes back home, the dog follows her here and there. When Mary does her homework, it lies(卧) near her feet. When Mary watches TV, the dog sits on the sofa near her. When Mary goes to bed, the dog lies its bed next to Mary’s. in the evening, they often run and play in the yard (院子). They are really good friends. 

根据短文内容，选择正确答案。（1×5=5分）

小题1:Mary has a _____ dog.

A．white

B．black

C．yellow

D．red小题2:The pug-dog is very _______.

A．lazy and big

B． small and lazy

C．small and cute

D． big and beautiful小题3:The pug-dog’s favorite food are _______.

A．grass and leaves

B．fruit and fish

C．bread and meat

D．grass and meat小题4:The dog _____ when Mary watches TV.

A．follows her here and there

B．lies near her

C．sits on the sofa

D．lies on the bed小题5:Mary is a ______.

A．student

B．teacher

C．doctor

D．actor

蚯蚓属于环节动物，营穴居生活。蚯蚓适应穴居生活的特点有

①身体细长呈圆柱形②身体分节③具有刚毛④体表有黏液    [ ]

A．①②③  

B．①②④  

C．②③④  

D．①③④

导游员在提升游客文明素质方面具有重要的（）作用。

A.宣传

B.规劝

C.垂范

D.提醒

E.监督

2005年3月31日，京沪高速公路一辆载有液氯的槽罐车在车祸中发生液氯泄漏事故，造成数百人伤亡．常温下氯气（化学式为Cl₂）是一种黄绿色气体，密度比空气大，有剧毒，能溶于水，且能与水、碱等物质反应．在压强为101KPa、温度为-34.6°C时，氯气变成液态～液氯．请回答下列问题：

（1）液氯属于______．

A．化合物  B．混合物     C．单质     D．氧化物

（2）救援人员为消除危险源，将载氯槽罐车吊移至水池，并用氢氧化钠进行处理．氯气与氢氧化钠发生的反应是：Cl₂+2NaOH=X+NaClO+H₂O

请推断X的化学式______．NaClO（次氯酸钠）中Cl元素的化合价是______．

（3）液氯泄漏时，下列防御自救的合理措施是______．

A．应往高处逆风方向跑  B．应往低处顺风方向跑  C．立即用浸过水的湿毛巾护住口鼻．

除极个别的产品用电引火头外，几乎所有的烟花爆竹产品都用引线来（）。