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【单选题】
Why does the professor mention a five story building?A.
To correct a common misunderstanding about grasshoppers.
B.
To help explain how well' grasshoppers can jump.
C.
To compare the size of grasshopper with that of other insects.
D.
To show how quickly grasshoppers respond to danger.
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【单选题】不等式x<6的正整数解有()个< /div>
A.
5
B.
4
C.
6
【单选题】The time it took car P to travel 600 miles was 2 hours less than the time it took car R to travel the same distance. If car P's average speed was 10 miles per hour greater than that of car R, what was...
A.
40
B.
50
C.
60
D.
70
E.
80
【单选题】How long is the shaft?
A.
12.5 miles.
B.
23 miles.
C.
less than 32 miles.
D.
37 miles.
【单选题】The table above shows the one-way driving distance, in miles, between four cities: P, Q, R, and S. For example, the distance between P and Q is 144 miles. If the round trip between S and Q is 16 miles...
A.
174
B.
182
C.
186
D.
348
E.
364
相关题目：
【单选题】不等式x<6的正整数解有()个< /div>
A.
5
B.
4
C.
6