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【单选题】
一点处于平面应力状态, a-a平面上和b-b平面上的应力如图所示。则该点的最大主应力值为( )【图片】A.
78.1 MPa
B.
80.2 MPa
C.
82.9 MPa
D.
83.7 MPa
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举一反三
【单选题】(5 ) This selection is mainly about ___________.
A.
the effort involved in writing
B.
the similarities between writing and public speaking
C.
learning how to make a public speech
D.
learning how to talk on paper
【单选题】Please turn to Page 93. Choose the best answer to complete each of the following sentences according to the information contained in the listening passage. 1. This talk is mainly about ________.
A.
why teenagers refuse to listen to their parents
B.
what the larger problems in the parent-teenager relationship are
C.
what needs to be done to improve the parent-teenager relationship
D.
what causes the communication problem between teenagers and their parents
【单选题】This talk is mainly about ______.
A.
why teenagers refuse to listen to their parents
B.
what the larger problems in the parent-teenager relationship are
C.
what needs to be done to improve the parent-teenager relationship
D.
what causes the communication problem between teenagers and their parents
【单选题】Choose the best answer to complete each of the following sentences according to the information contained in the listening passage. This talk is mainly about ________.
A.
why teenagers refuse to listen to their parents
B.
what the larger problems in the parent-teenager relationship are
C.
what needs to be done to improve the parent-teenager relationship
D.
what causes the communication problem between teenagers and their parents
【单选题】Task 2 Listen to the lecture and complete each of the following sentences with the best answer. 1. This talk is mainly about the importance of ___________.
A.
patient autonomy
B.
doctor-patient relationship
C.
doctor's understanding of patient
【单选题】What is this talk mainly about?
A.
How to combine elements in music
B.
A lecture on American composition
C.
A brief introduction to music composition
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