许诺是十分郑重的行为,我们在学会承诺错误的做法是() A.热心助人,有求必应 B

题型:选择题

问题:

许诺是十分郑重的行为,我们在学会承诺错误的做法是(   )

A.热心助人,有求必应

B.三思而后行,慎重许诺

C.量力而行,尽力而为

D.无法兑现时,坦诚沟通

考点:做负责任的公民责任的定义,来源与特征不求代价与回报。对自己负责
题型:选择题

船舶进、出港或在港内航行、作业,均应向()或其设置的签证站点办理签证。

题型:选择题

单词拼写。

1. Do you have any difficulty ________ (解决) the problem?

2. "________ (注意), please. Flight No. 2903 has arrived."

3. Thank you for giving us so many good ________ (建议).

4. We all wish that the Asian Games (亚运会) would be held ________ (成功地) in Guangzhou.

5. Millie had no ________ (选择) but to wait for the next train yesterday morning.

6. You shouldn't leave a child ________ (单独) in the house.

7. It is said that twins have ________ (相似的) characteristics.

8. The more vegetables you eat, the ________ (健康) you will be.

9. —I am not sure which tie to wear for the party. —God! I have no idea, ________ (也).

10. He seems very serious, but in fact he has a good sense of ________ (幽默).

题型:选择题

若4x2+mxy+9y2是一个完全平方式,则m= [ ]

A.  6

B.  12

C.  ±6

D.  ±12

题型:选择题

玉米是恩施州的主要农作物之一,玉米种子的养料主要储存在下列哪一种结构中(  )

A.胚乳

B.胚芽

C.种皮

D.子叶

题型:选择题

一般钢结构中,承重结构的钢材宜采用()。

A.Q235、Q345、16Mnq、Q390、15MnVq

B.Q235、Q345、16Mnq、45号钢

C.25MnSi、A3F、BY3F、Q345

D.45号钢、15MnTi、15MnVq、B3F、35号钢

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