发布时间:2022-05-18 05:00:23
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1、In context, which of the following changes best improves sentence 6?(单选题)
A. replacing "They" with "For instance, we are inclined to"
B. replacing "that spirits" with "about spirits"
C. deleting "that live in wood"
D. replacing "have to be" with "would have been"
E. replacing "or" with "but"
试题答案:A
2、Bill can inspect a case of cell phones in 6 hours. Jack can inspect the same case of cell Phones in 4 hours. After working alone for l hour, Bill stops for lunch. After taking a 30-minute lunch break. Bill and Jack work together to inspect the remaining cell phones. How long do Bill and Jack work together to complete the job?(单选题)
A. 1 hr. and l2 min
B. 1 hr. and 24 min
C. 2 hrs
D. 2 hrs and lo min
E. 2 hrs and 20 min
试题答案:C
3、-9cos2θ- 9sin2θ= ______.(单选题)
A. 0
B. 1
C. -1
D. 9
E. -9
试题答案:E
4、A square has the same area as a rectangle whose longer side is 2 times the length of its shorter side. If the perimeter of the rectangle is 24, what is the perimeter of the square?(单选题)
A.
B.
C. 32
D.
E. 64
试题答案:B
5、If ft=V represents the relationship between the flow of the tap and the time it takes to fill a sink, where f=flow rate, t=time, and V=volume of the sink, what happens to the value of t if the value of f is doubled (assuming V remains constant)?(单选题)
A. It doubles
B. It remains the same
C. It halves
D. It squares
E. It quadruples
试题答案:C
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