问题 问答题

现有H、O、C、C1、Na五种元素,请选用其中的一种或几种元素,填写符合下列要求的化学式(各写-个)

(1)人体胃液中含有的酸______      (2)天然气,沼气的主要成分______

(3)可用作调味剂的盐______; (4)碘酒是生活中常用的皮肤消毒剂、碘酒中的“酒”是指______.

答案

(1)盐酸中的溶质是氯化氢,氯化氢的化学式是HCl.故填:HCl.

(2)甲烷的化学式是CH4.故填:CH4

(3)氯化钠的化学式是NaCl.故填:NaCl.

(4)酒精的化学式是C2H5OH.故填:C2H5OH.

阅读理解

A little knowledge (知识) can make a difference at a time of life or death. Do you know what to do if you find yourself in an earthquake?

If you are inside:

●Quickly move under a strong desk, a strong table or along a wall. You can also go into a small room like the bathroom. Do not get into a lift.

●Don’t stand near windows, large mirrors, heavy furniture or fireplaces.

If you are outside:

●Move away from buildings and streetlights. These could fall on you.

●Squat (蹲下) and protect your head until the shaking stops.

After the earthquake:

●Check, take care of injuries (损伤) and help make sure people around you are all right.

●Watch out for aftershocks.

●Protect yourself by wearing long pants, a long-sleeved(长袖的) shirt and strong shoes.

●Listen to the radio for the latest information.

小题1:If you are in a tall building when an earthquake happens, you’d better       .

A.run into a lift

B.not stay in the bathroom

C.stand near large mirrors

D.not stand near windows小题2:If you are outside during an earthquake,       .

A.you must move into a building

B.you cannot squat

C.you have to stop the shaking

D.you must move away from streetlights小题3: After the earthquake, you should       .

A.look after injuries

B.not listen to the radio for the latest information

C.protect yourself without wearing shoes

D.not help the others around you小题4:The underlined word “aftershocks” in the passage means       .

A.震感

B.震源

C.余震

D.防震小题5:The passage is mainly about       .

A.what to do before an earthquake takes place

B.what to do if you are in an earthquake

C.how to escape from an earthquake when you are at home

D.how to predict (预知) an earthquake in the open air.

多项选择题

2011年A公司发生了下列事项:

(1)A公司销售给B公司一批货物,A公司按合同约定按期交货,B公司签发一张金额为20万元的转账支票交给A公司。A公司到银行提示付款时,发现该支票是张空头支票。A公司主张:中国人民银行应对B公司处以罚款,并要求B公司给予经济赔偿。

(2)A公司向B公司购买一批产品,向其交付了一张30万元的银行汇票,该汇票的收款人为B公司,付款人为C银行。因受市场变化的影响,该业务的实际结算金额变为35万元。B公司接受此银行汇票后,到C银行提示付款时,C银行拒绝付款。

(3)A公司某采购人员持有该公司开户银行签发的、不能用于支取现金的银行本票,前往甲公司购置一批价值10万元的产品。由于该采购人员保管不善,在途中将该银行本票丢失。随后,A公司根据该采购人员的报告,将银行本票遗失情况通知公司开户银行,要求挂失止付,但公司开户银行对上述情况进行审查后拒绝办理挂失止付。

(4)A公司和乙公司签订一项购销合同,A公司向乙公司开出出票后1个月付款的银行汇票。乙公司将汇票背书后向D公司转让,D公司又背书后向E公司转让。

(5)A公司2月从现金收入中直接支取5万元用于职工福利。

关于A公司从现金收入中直接支取5万元用于职工福利的做法,下列说法正确的是()。

A.由于来回转账不方便,所以A公司的做法符合规定

B.A公司的做法为坐支

C.开户单位支付现金,可以从本单位库存现金限额中支付或从开户银行提取,只有会计主管同意时才能从现金收入中直接支付

D.开户单位支付现金,可以从本单位库存现金限额中支付或从开户银行提取,不得从本单位现金收入中直接支付