教师在美术教学行为中的角色是（）。 A.学生的学童和帮工 B.学生学习的引导者 C.

在资产预期收益率公式中，影响βj确定的风险因素有（）。

A.通货膨胀风险

B.市场供求风险

C.机会成本风险

D.持有期风险

E.利率风险

松散群体是指学生们只在空间和时间上结成群体,但成员间尚无共同活动的().

A．目的和内容

B．共同语言

C．深厚友谊

D．约束力量

根据下列句子及所给单词的首字母，在答题卷上按题号写出各单词的完全形式（每空限填一词）。

小题1:If you can swim a        the river, I’ll be waiting for you on the other side.

小题2:She took part in helping people in the Wenchuan Earthquake. She would never forget this unusual      .

小题3:I like c      with my friends online very much.

小题4:In Lily’s paper there are f           mistakes than in Jack’s.

小题5:I read my essay a          in class and everyone can hear me clearly.

小题6:His speech was boring, but he did not r           it.

小题7:He is good at thinking. I think he can answer the question in a d            way.

小题8:Would you mind not w          your time?

小题9:Don’t stay up late, or you will feel s             in class during the day.

小题10:He joined the army(军队) five years ago, so he has been a s              for five years.

以程度变化为主的情感障碍包括（）

A.情感淡漠

B.情感低落

C.焦虑

D.情感脆弱