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【单选题】
已知方程组 2x-3y=13 3x+5y=-9 的 x=2 y=-3 ，则方程组 2(x-1)-3(y+2)=13 3(x-1)+5(y+2)=-9 的（ ）A.
x=2 y=-3
B.
x=3 y=-5
C.
x=1 y=-5
D.
x=3 y=-1
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举一反三
【单选题】Which is the correct meaning of "body" in the sentence "part of the student body...."?
A.
a dead person
B.
a person's figure
C.
a group of people
D.
the main part of an essay
【单选题】Which of the following is not the factor contributing to anxiety of student?
A.
Worries about the future .
B.
Heavy financial burden .
C.
Pressure from family.
D.
Grave situation of employment .
【单选题】嘧啶环中的 2 个氮原子来自哪两种原料: prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
Gln 和 NH 3
B.
Gln 和 Asp
C.
Gln 和氨甲酰磷酸
D.
Gly 和 Asp prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
【单选题】Which of the following writing activities reflect process-orientation?
A.
Asking the students to write an essay parallel to the text they have learned.
B.
Asking the students to peer-edit their first draft.
C.
Asking the students to complete a passage with transitions.
D.
Asking students to lay a great focus on the grammar structure and word spelling.
【简答题】前厅部的地位和作用表现在哪些方面?
【单选题】嘧啶环中的 2 个氮原子来自哪两种原料: A. Gln 和 NH 3
A.
Gln 和 NH 3
B.
Gln 和 Asp
C.
Gln 和氨甲酰磷酸
D.
Gly 和 Asp
【单选题】Which of the following is TRUE about the woman?
A.
She is a waitress at the student center.
B.
She will take care of the dinner.
C.
She has finished all her examinations.
D.
She has never been to the museum before.
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