当两个原子形成共价键时,将( ) A.吸收能量 B.放出能量 C.可能吸收能量也

题型:选择题

问题:

当两个原子形成共价键时,将(  )

A.吸收能量

B.放出能量

C.可能吸收能量也可能放出能量

D.能量不会改变

考点:能量的相互转化
题型:选择题

多形性腺瘤发生最多的部位是()

A.唇腺

B.下颌下腺

C.舌下腺

D.腭腺

E.腮腺

题型:选择题

根据下列句子及所给汉语注释或通过上下文, 在答题卡上标有题号的横线上,写出空缺处各单词的正确形式。每空只写一词。

小题1:Who do you think is   (苗条),Kitty or Sandy?

小题2:Mr. Wu is an     (有能力的)teacher and he is my favourite teacher.

小题3:When Thomas Edison was young, he showed great   (兴趣)in everything.

小题4:I am still   (想知道)what was going at the time.

小题5:I liked to sit beside the window and enjoy the    (美景)in the park.

小题6:We plan to help the students in poor areas by   (提供)them with some stationery.

小题7:We must help this boy.  He doesn't know the   (重要性)of study.

小题8:-I don't think it's right to treat Jimmy like this.

-I agree with you. He worked the hardest but got the   money.

小题9:- Have you heard that Jack had an accident last night?

- Yes, but   he wasn't badly hurt.

小题10:- Shall we go for a hiking this weekend?

- All right,   it rains.

题型:选择题

气溶胶吸入显像异常图像的表现是()

A.大气道内稍有放射性沉积

B.两侧肺野内放射性分布不均匀,不均匀区的面积小于两肺总面积的25%

C.大气道内有较多的放射性沉积

D.两肺野有25%~50%的区域放射性分布不均匀

E.大气道或小气道均有明显的放射性沉积,全肺野中放射性稀疏或缺损面积大于50%

题型:选择题

组织设计的核心是()

A.形象设计

B.人员设计

C.结构设计

D.功能设计

题型:选择题

当我国各地白昼时间最短时,下列四幅图所示气压带、风带分布正确的是()

A.a

B.b

C.c

D.d

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