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【单选题】
关于等长运动的表述，正确的是A.
步行、跑步、游泳都是典型的等长运动
B.
做功时，肌肉张力明显增加而肌肉长度基本不变
C.
等长运动时骨骼肌血管扩张，外血管阻力降低
D.
对心血管患者有利
E.
是受试者首选的运动形式
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反馈参考答案：
举一反三
【判断题】For an international flight, you’d better arrive at the airport at least 30 minutes early.
A.
正确
B.
错误
【判断题】When taking an international flight, you’d better arrive at the airport terminal two hours before departure.
A.
正确
B.
错误
【判断题】For an international flight, you’d better arrive at the airport at least 30 minutes early.
A.
正确
B.
错误
【单选题】You’d better arrive _____minutes early.
A.
10 minutes
B.
half an hour
C.
1 hour
D.
just on time
【简答题】Passage 3 - II (1)
【判断题】You’d better arrive ten minutes earlier when you are invited to have dinner at your French friend’s house.
A.
正确
B.
错误
【单选题】Whenever you have an appointment, you’d better arrive（）.
A.
a little time a head
B.
a little a head of time
C.
a head of time a little
D.
a little time a head of
【判断题】You’d better arrive to the room in which you will be speaking early to make sure everything is functional for your speech.
A.
正确
B.
错误
相关题目：
【单选题】You’d better arrive _____minutes early.
A.
10 minutes
B.
half an hour
C.
1 hour
D.
just on time
参考解析：
知识点：
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