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【多选题】
下列哪几项是强迫症的症状( )A.
强迫思维
B.
言语增多
C.
强迫行为
D.
强迫意向
E.
精神痛苦
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反馈参考答案：
举一反三
【单选题】下列反应的平衡常数 ：C(s)+O 2 (g)====CO 2 (g)为 ，2CO(s)+O 2 (g)====2CO 2 (g)为 ，C(s)+(1/2)O 2 (g)=CO(g)为 ，则三个平衡常数之间的关系为( )。
A.
B.
C.
【单选题】Why does the woman's initial excitement turn to disappointment?
A.
She is told that all swimming classes are full.
B.
She learns that she will have to pay extra for classes.
C.
She finds out that there are no swimming classes at her level.
D.
She thought all sports activities were supervised by coaches.
【单选题】Why does the student go to the woman's office?
A.
To schedule an audition to join an archestra
B.
To ask a question about a music class he is taking
C.
To get information for an article he is writing
D.
To ask a question about a lecture the woman gave
【单选题】Why does the man need the woman's help?
A.
Because he fell down into the deep bunker.
B.
Because he can't get the ball out of the deep bunker.
C.
Because he can't find his ball.
D.
Because he can't find his sand wedge.
【单选题】298K时，下列反应中， 的为( )。
A.
B.
C(s)+O 2 (g)====CO 2 (g)
C.
CO 2 (g)+C(s)====2CO(g)
D.
C(s)+H 2 O(g)====CO(g)+H 2 (g)
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