牙体缺损修复时,牙体预备的要求哪项不正确()A.去除病变组织 B.开辟修复体所占空间

题型:单项选择题

问题:

牙体缺损修复时,牙体预备的要求哪项不正确()

A.去除病变组织

B.开辟修复体所占空间

C.提供良好的固位形和抗力形

D.无需做预防性扩展

E.磨改过长牙或错位患牙

考点:口腔执业助理医师口腔执业助理医师73
题型:单项选择题

选择精馏塔,一般要从()个方面来考虑。

A.二

B.三

C.四

D.五

题型:单项选择题

克雷伯杆菌肺炎的X线表现叶间隙下坠原因是()

A.肺泡内的渗出液由Cohn孔向周围肺泡蔓延所致

B.细菌在肺泡内生长繁殖,引起组织坏死、液化形成

C.病变中的炎性渗出液黏稠而重

D.肺泡内的纤维蛋白渗出较多

E.肺泡内的渗出含有较多的红白细胞

题型:单项选择题

容器panel和applet缺省使用的布局编辑策略是( )。

A.borderlayout

B.flowlayout

C.gridlayom

D.carlayout

题型:单项选择题

[A] Advertisements add interests to life

[B] Advertisements help to save money

[C] Criticisms on advertisers

[D] Usefulness of small advertisements

[E] True aesthetic value of advertisement

[F] Informing: the chief function of advertising

41__________

Advertisers tend to think big and perhaps this is why they’re always coming in for criticism. Their critics seem to resent them because they have a flair for self-promotion and because they have so much money to throw around. "It’s iniquitous," they say, "that this entirely unproductive industry (if we can call it that) should absorb millions of pounds each year. It only goes to show how much profit the big companies are making. Why don’t they stop advertising and reduce the price of their goods After all, it’s the consumer who pay..."

42__________

The poor old consumer! He’d have to pay a great deal more if advertising didn’t create mass markets for products. It is precisely because of the heavy advertising that consumer goods are so cheap. But we get the wrong idea if we think the only purpose of advertising is to sell goods. Another equally important function is to inform. A great deal of the knowledge we have about household goods derives largely from the advertisements we read. Advertisements introduce us to new products or remind us of the existence of ones we already know about. Supposing you wanted to buy a washing machine, it is more than likely you would obtain details regarding performance, price, etc. , from an advertisement.

43__________

Lots of people pretend that they never read advertisements, but this claim may be seriously doubted. It is hardly possible not to read advertisements these days. And what fun they often are, too! Just think what a railway station or a newspaper would be like without advertisements. Would you enjoy gazing at a blank wall or reading railway laws while waiting for a train Would you like to read only closely-printed columns of news in your daily paper A cheerful, witty advertisement makes such a difference to a drab wall or newspaper full of the daily ration of calamities.

44__________

We must not forget, either, that advertising makes a positive contribution to our pockets. Newspapers, commercial radio and television companies could not subsist without this source of revenue. The fact that we pay so little for our daily paper, or can enjoy so many broadcast programs is due entirely to the money spent by advertisers. Just think what a newspaper would cost if we had to pay its full price!

45__________

Another thing we mustn’t forget is the "small ads." which are in virtually every newspaper and magazine. What a tremendously useful service they perform for the community! Just about anything can be accomplished through these columns. For instance, you can find a job, buy or sell a house, announce a birth, marriage or death in what used to be called the "hatch, match and dispatch" columns; but by far the most fascinating section is the personal or "agony" column. No other item in a newspaper provides such entertaining reading or offers such a deep insight into human nature. It’s the best advertisement for advertising there is !

42()

题型:单项选择题

采煤机检修后牵引部试验准备:按要求注油排气,接通电源,注入冷却水,水温不低于10℃。()

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