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【简答题】
阅读理解。 Why do plants grow in some places and not in others? Why does some land have so much growing on it, while other land has almost no plants growing on it at all. To grow, plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the Earth only a few unusual plants can grow. That's why dry deserts everywhere are almost not covered by trees or grass. Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The plants here can only grow in the soil between the cracks (缝隙) of the stones. Another thing plants must have before they can grow is food. What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won't. Even if the weather is warm enough and we water the plants each day, many of them will die because the sand on this beach has almost no food for plants. 1. Plants can grow ______. [     ] A. nowhere B. somewhere C. anywhere D. everywhere 2. The passage tells us that plants need things to grow. [     ] A. two B. three C. four D. five 3. Plants like to grow in soil. [     ] A. dry B. hard C. soft D. hot 4. From the passage, we can know most of the plants aren't able to grow on the sandy beach because ______. [     ] A. the soil is too poor B. there is too much water C. sunshine is not enough D. sunlight is too strong 5. Maybe the passage can be found in a _____ book. [     ] A. travel B. history C. physics D. science
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【简答题】"请”用于希望对方做某事。如请问:用于请求对方________;请坐:请求对方_____;请进:请对方____。
【简答题】若有定义int a,b,c;则计算a=(b=4)+(c=2);后,a=______,b=______,c=______。
【单选题】以下 ( ) 不属于分模数的适用范围 。
A.
.缝隙
B.
.构造节点
C.
.构配件断面尺寸
D.
.建筑轴线定位
【单选题】下列对直觉型性格的人说法正确的是()。
A.
注意细节
B.
注重微观
C.
注重逻辑联系
D.
描述事物更具体
【单选题】( 2018• 宜昌)如图所示,下列现象中属于光的反射的是( )
A.
小孔成像
B.
彩虹的形成
C.
太阳灶聚光
D.
从岸上看鱼的位置变浅
【单选题】如图下列各种现象中,属于光的反射现象的是(  )
A.
水面上“折断”的铅笔
B.
“错位”的钢笔
C.
岸边的景物在水中的倒影
D.
彩虹
【简答题】根据不同的使用要求,机床夹具还可以设置 、 、 及其他辅助装置。
【简答题】下列词句中属于光的反射现象的是______;属于光的折射现象的是______(选填数字号码). ①立竿见影;②镜花水月;③坐井观天;④海市蜃楼;⑤凿壁偷光;⑥水中捞月;⑦夕阳如血;⑧猪八戒照镜子,里外不是人.
【单选题】如 下列 现象中,属于光的反射现象的是 ()
A.
雨后空中出现的彩虹
B.
放大镜把图案放大
C.
看镜子里的像
D.
日食的形成
【简答题】下列词句中属于光的直线传播现象的是 _________ ;属于光的反射现象的是 _________ ;属于光的折射现象的是 _________ (选填数字号码). ①立竿见影; ②镜花水月; ③坐井观天; ④海市蜃楼; ⑤凿壁偷光; ⑥水中捞月; ⑦夕阳如血; ⑧猪八戒照镜子,里外不是人.
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