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【单选题】
a=[1 3 5;2 0 6;0 8 9] b=~a 结果是A.
b = 1 2 0 3 0 8 5 6 9
B.
b = 1 1 1 1 0 1 0 1 1
C.
b = 1 3 5 2 0 6 0 8 9
D.
b = 0 0 0 0 1 0 1 0 0
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举一反三
【简答题】2 . What does
“cut the prices” mean?A. Breaking the prices. B. Pushing up the prices. C. Reducing the prices. D. Setting the prices.
【简答题】为什么说汉字形体演变朝着简化易写的方向发展?
【单选题】Emi says, "Dave, cut it out!" What does she mean?
A.
Cut my sandwich.
B.
Where is my order?
C.
Stop joking.
【单选题】What does the speaker say Wellington Corporation plans to do?
A.
Cut prices for a number of its products
B.
Expand its product offerings by 30 percent
C.
Increase the number of its employees worldwide
D.
Increase the number of countries in which it sells products
【单选题】What does the sentence ' the government has cut... training courses' in the last paragraph imply?
A.
Cambridge has already played an exemplary role in cutting.
B.
Training courses are less important than the investment to students.
C.
There are almost 4,000 fewer places available on teacher training after cutting.
D.
Students' number decrease caused the cutting places on training courses.
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