问题
单项选择题
发动机冷却方式有水冷却和风冷却两种基本形式，汽油机上广泛采用（）。
A.强制循环式水冷却
B.风冷却
C.强制循环风冷却
D.水冷却
答案
参考答案：A
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发动机冷却方式有水冷却和风冷却两种基本形式，汽油机上广泛采用（）。
A.强制循环式水冷却
B.风冷却
C.强制循环风冷却
D.水冷却
参考答案：A
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of the year. When spring comes, the 3. gets warmer and warmer. But it isn't hot." Gao Lan says, "I don't 4. spring. It is often 5. I like 6. instead (相反). I like swimming in the swimming pool. Sometimes I 7. in the river." Wang Fang says, "It's so 8. in summer. In autumn it is cool." "I like winter best. Sometimes it 9. and the ground are all 10. . We can go skating, play snow fight or make a snowman." Zhang Ming says. Which season do you like? |