下列生活用品所使用的主要材料，属于有机合成材料的是（） _爱下问搜题

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问题选择题

下列生活用品所使用的主要材料，属于有机合成材料的是（　　）

A．

矿泉水瓶

B．

瓷碗

C．

羊毛手套

D．

铁锅

答案

答案：A

题目分析：

选项A、矿泉水瓶为塑料制品，属于有机合成材料，故A正确，

选项B、瓷碗为陶瓷制品，属于无机非金属材料，故B错误。

选项C、羊毛手套为羊毛制品，属于天然材料，故C错误。

选项D、铁锅为金属制品，属于金属材料，故D错误。

故选A．

完形填空

When I began planning to move to Auckland to study, my mother was worried about a lack of jobs and cultural differences. Ignoring these 36 , I got there in July 2010. 37 I arrived, I realized the importance of getting a job 38 my living expenses. Determined to do this 39 , I spent several weeks going door-to-door for a job, but found 40 response(回应).
One afternoon, I walked into a building to ask 41 there were any job opportunities(机会). The people there advised me not to continue my job search in that 42 . As I was about to 43 , a man who had been listening approached me and asked me to wait outside 44 . Nearly ten minutes later, he 45 . He asked me about my plans and encouraged me to stay 46 . Then he offered to take me to Royal Oak to 47 a job.
I was a little surprised, but had a 48 feeling about him. Along the way, I realized that I had 49 resumes(简历). Seeing this, the man 50 at his business partner’s office to make me fifteen 51 copies. He also gave me some 52 on dressing and speaking. I handed out my resumes and went home feeling very 53 . The following day, I received a 54 from a s tore in Royal Oak offering me a job.
It seems that the world always 55 to you when you need it. And this time, it was a complete stranger who turned out to be a real blessing.

C．instructions

C．by any chance

B．at any time

D．for a while

D．comfortable

A．made use of

B．taken care of

D．become tired of

C．impressions

D．suggestions

C．disappointed

多项选择题案例分析题

患者男性，46岁，60kg。血压140/90mmHg，心电图示右束支传导阻滞，因慢性肾炎、尿毒症拟行同种异体肾移植术。

如术中血压下降幅度较大时，宜选用的药物是（）

A.多巴胺

B.麻黄碱

C.肾上腺素

D.去甲肾上腺素

E.多巴酚丁胺

F.去氧肾上腺素