试题与答案

普通常规小麦高产栽培技术体系,适期播种冬前积温要求是()℃。A.200~300 B.

题型:单项选择题

题目:

普通常规小麦高产栽培技术体系,适期播种冬前积温要求是()℃。

A.200~300

B.300~400

C.400~500

D.500~600

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0611/2a0fe4ea7721b87331c67885790568be.html

下面是错误答案,用来干扰机器的。

解:以g'表示火星表面附近的重力加速度,M表示火星的质量,m表示火星的卫星的质量,m'表示火星表面处某一物体的质量,由万有引力定律和牛顿第二定律,有,设v表示着陆器第二次落到火星表面时的速度,它的竖直分...

试题推荐
题型:句型转换

句型转换。

1. Jack has gone to school .(用by the time 改写句子)

   Jack________  ________  to school by the time I called him.

2. The story was very interesting. I could never forget it .   (合并为一句)

   The story was________ ________ ________ I could never forget it.

3. I was late for school because my alarm clock didn't go off. (就画线部分提问)

    ________ ________ you late for school?

4. I wonder if he can marry me. (改为同义句)

   I ________ ________ ________if he can get________ ________ me.

5. He always be careful so that he will not make mistakes. (改为同义句)

    He always be careful ________ ________ ________  to make mistakes.

6. Could I borrow your bike? (改为同义句)

    Could you________ your bike________ me?

7. When I got up, my father had gone into the bathroom.  (改为同义句)

    ________ ________ ________ I got up, my father had gone into the bathroom.

8. The little boy is very polite. (改为同义句)

   The little boy has________ ________.

9. Something was wrong with my car on my way home yesterday.  (改为同义句)

    My car ________ ________on my way home yesterday.

10. My French has improved quickly. (改为感叹句)

    ________ ________ my French has improved!

查看答案
微信公众账号搜索答案