问题
单项选择题
()冲孔因携带岩屑能力低、能量消耗大,较少使用。
A、低密度流体
B、泡沫
C、雾气
D、干空气
答案
参考答案:A
()冲孔因携带岩屑能力低、能量消耗大,较少使用。
A、低密度流体
B、泡沫
C、雾气
D、干空气
参考答案:A
阅读下面三则广告,回答问题。 | |||
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1. The advertisements above are about ______. | |||
[ ] | |||
A. shopping B. food C. travel D. hotels | |||
2. If you go to Bangkok, you can . | |||
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A. Climb Mountains B. enjoy the scenery of the forests C. live in the Post Hotel D. buy fruits while sitting in your boat |
3. is one better way to prevent the strong sunshine in Bangkok. |
[ ] |
A. Going to the sandy beaches B. wearing a hat C. Climbing up the mountains D. staying in the forests |
4. Which place will you choose if you want to visit both mountains and beaches? |
[ ] |
A. Soll in Austria. B. Bangkok in Thailand. C. the Floating Market. D. Kauai in Hawaii. |
5. According to (根据) the advertisements, we know that _______. |
[ ] |
A. the hottest travel place is Soll B. maybe it often rains in the centre of Kauai C. the Floating Market is in the middle of Bangkok D. the Post Hotel in Austria is clean but the price is high |