—Do you know how to go to the restrooms?

发布时间：2017-06-26 13:07 │ 来源：www.tikuol.com

题型：选择题

问题：

—Do you know how to go to the restrooms?

—______.[ ]

A. Yes, I do.

B. I could.

C. Sure.

D. I could tell you.

考点：一般疑问句

题型：选择题

阅读理解。

        Teeth are important. Strong , healthy teeth help you chew (咀嚼) foods that help you grow. They help you
speak clearly. And yes, they help you look best. Here are some tips for you to take care of you teeth:
       1. Brush your teeth the right way.
           Brush your teeth at least twice a day after breakfast and before bedtime. If you can, brush after lunch or
after sweet snacks, too. Brush all of your teeth, not just the front ones. Spend time brushing teeth along the sides and back of your mouth. Spend at least three minutes each time you brush. Play a song you like to help pass the
time. Get a new toothbrush every three months. When you buy toothbrush, be sure it has soft bristles (鬃毛).
       2. Learn how to floss(用牙线剔牙) your teeth.
           Flossing is a very important way to keep your teeth healthy. Food may hide between two teeth. Flossing
can help get rid of it. You'll need to floss your teeth at least once a day.
       3. Have good eating habits.
          You need to be careful about what you eat and drink. Eating sugar is a major cause of tooth decay(蛀牙). Eat lots of fruits and vegetables and drink water instead of soda（苏打）.

1. How many times at least should we brush our teeth a day? ______

A. 1
B. 2
C. 3
D. 4

2. What is the major cause of tooth decay? ______

A. Not brushing teeth
B. Not changing toothbrush
C. Eating sugar
D. Not flossing teeth

3. How often should we change our toothbrushes? ______

A. never
B. three times a month
C. every three months
D. every month

4. The bristles of the toothbrush must be______

A. hard
B. soft
C. expensive
D. not mentioned

5. Which is the right way to take care of teeth? ______

A. Only brush front teeth.
B. Not brush teeth before sleeping.
C. Spend at most three minutes to brush teeth each time.
D. Eat lots of fruits and vegetables and drink water instead of soda.

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题型：选择题

（）是按黄、品红、青三原色料（如颜料、油墨）减色混合原理成色的方法。

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题型：选择题

下列表现为梅核气表现的有（）

A.咽中不适，如有物梗塞，吐之不出，咽之不下

B.胸中窒闷

C.苔白腻

D.脉弦滑

E.精神恍惚，心神不宁

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题型：选择题

为提高井壁取心收获率，必须合理选择（）。

A、井深

B、井段

C、钢丝绳长度

D、岩心筒重量

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题型：选择题

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