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【单选题】
When astronauts are in space, even mundane tasks like brushing teeth can be a challenge.
A.
correct
B.
incorrect
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】For thousands of years, sailors have used the stars to inhabit their way.
A.
correct
B.
incorrect
【单选题】The manager dominated the conversation. She made sure that everyone spoke an equal amount of time.
A.
correct
B.
incorrect