表示塑料包装制品回收标志的是_爱下问搜题

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问题选择题

表示塑料包装制品回收标志的是

答案

答案：A

A中PVC是塑料的简称，属于可回收利用的制品，故正确．

B中属于易燃品的标志，故错误．

C中属于禁止制品的标志，故错误．

D中属于禁止吸烟的标志，故错误．

故选A．

单项选择题

中央银行的主要间接业务是( )。

A．货币发行业务

B．公开市场业务

C．信贷业务

D．全国清算业务

完形填空

完形填空。
The first time I remember noticing the crossing guard was when he waved to me as I drove my son to school.He__1__me with a puzzle-all because he waved to me like someone does __2__ seeing a close friend.A big,__3__smile accompanied his wave.For the next few days I tried to__4__his face to see if I knew him.I didn't.Perhaps he had__5__me for someone else. By the time I contented myself with the__6__that he and I were strangers,we were greeting each other warmly every morning like old friends. Then one day the__7__was solved.As I__8__the school he was standing in the middle of the road__9__his stop sign.I was in line behind four cars.__10__the kids had reached the safety of the sidewalk,he lowered his sign and let the cars__11__.To the first he waved and__12__in just the same way he had done to me over the last few days.The kids already had the window down and were happily waving their reply.The second car got the same__13__from the crossing guard,and the driver,a stiff looking(表情刻板的)businessman,gave a brief,almost__14__wave back.Each following car of kids on their way to school__15__more heartily. Every morning I continued to watch the man with__16__.So far I haven't seen anyone__17__ to wave back.I find it interesting that one person can make such a(n)__18__to so many people's lives by doing one simple thing like waving and smiling warmly.His__19__armed the start of my day.With a friendly wave and smiling face he had changed the__20__of the whole neighbourhood.
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