【单选题】单元测试一音频Why does the man need the woman's assistance?
A.
He wants to know how to borrow the videos from the library.
B.
He wants to know the location of the library’s video collection.
C.
He wants to know how to find out where the play is currently being performed.
D.
He wants to know where to find the old newspaper reviews about a play.
【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( )。
【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.
【判断题】酸奶生产菌种主要是乳酸菌,泡菜生产菌种也主要是乳酸菌。
【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】Why does the man say this:
A.
To suggest a course of action for solving the woman's problem.
B.
To express frustration that the woman is unfamiliar with the library.
C.
To let the woman know who will be available to help her in the library.
D.
To indicate that he does not have time to assist the woman now.
【单选题】298K时,下列反应中, 的为( )。
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)