问题
单项选择题
钻孔桩施工中对钻孔的作业要求应（）。
A.连续作业
B.间断作业
C.先连续后间断
D.先间断后连续
答案
参考答案：A
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钻孔桩施工中对钻孔的作业要求应（）。
A.连续作业
B.间断作业
C.先连续后间断
D.先间断后连续
参考答案：A
| 阅读下列短文掌握其大意，然后从各小题所给的四个选项中选出最佳选项。 | ||||
| Do you know how to keep healthy? First, good 1 habits are very important. Many students 2 to eat junk food. Maybe it tastes （尝起来）good, but it's 3 for our health. And many students only eat their favorite food. It's bad for our health, 4 . It's good to eat 5 fruits and vegetables because they can 6 us keep in good health. And we should eat a balanced diet. It can give us lots of energy（能量）and keep our body 7 . 8 ,we should exercise often. A strong and healthy body comes from enough exercise. We can 9 some time doing our favorite sports every day. Finally, we should have good living habits, 10 , getting up and going to bed on time. | ||||
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