题干

在显微镜使用中,下列操作与其结果不匹配的是(  )

A:在观察装片时,先用低倍镜观察到清晰的物像后,然后改用高倍镜

B:当发现目镜上有杂质时,用餐巾纸擦拭

C:将低倍镜换成高倍镜后,发现视野中看到的细胞数目变少了

D:向右上方移动玻片时,右上方的物像移至视野中央

上一题 下一题 0.0难度 选择题 更新时间:2019-12-15 03:12:23

答案(点此获取答案解析)

B

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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Things to Keep in Mind before Moving to New York City

    ____ So, reading up on New York's history, facts, statistics, facilities, etc, is always a good idea. Learn about the culture, how to deal with people, taxi drivers, manners, or lack of manners that is exhibited there, and so on. It is always best to know what exactly you are getting into rather than landing there and getting a complete shock.

    Before you buy your clothes or shoes, you always try them out first, right? In the same way, before you move to New York, you need to visit it for a couple of days, just do that you can see what the city is like. ____

    The best and worst thing about New York is that this city is controlled by money. ____ Then, you need to set aside (留出) an amount for emergencies only. If you are moving to New York with a job, or are planning to get a job once you are in the city, then you need to make sure that your salary covers up all your expenses and the amount that you would set aside for emergencies.

    Finding a neighbourhood in New York is the key to actually enjoying your stay there. If you are moving to the city due to work, then look for living accommodations close to your workplace.____Do you see yourself living in a place that is quiet, like the Upper West Side or East Side, or do you want noisy setups, like the East Village, Lower East Side, or West Village?

    Give the city a chance, make some good memories, and enjoy your stay there. Be safe wherever you go, and don't worry too much. ____

A. The easiest way to survive in New York is to have a friend who knows this city really well.

B. Once you are in New York, you would never want to leave it.

C. Before you move to any city, it is always best to know a little about the city.

D. To start with, you will need to make a budget.

E. You need to decide what kind of neighborhood you want.

F. Take a tour of the city and try to imagine yourself living there.

G. The experience of moving to New York depends on how the city treats you and what you make of the city.