不定项选择

‏通常情况下，税负越重，资本回报率越高，税负越轻，资本回报率越低。（）‏

A．正确
B．错误

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单项选择题

Patient : Doctor, doctor! Come and see, why do you think I always have a chest pain after the operation? (fell very aggrieved as well as anxious) Doctor Chen: Don’t shout! Your chest has a wound, how can it not hurt? Patient: The patient in bed 5 has had the same operation as me on the same day. I can’t understand why he doesn't have pain. I guess there's something wrong with the operation operated by you? (showing dissatisfaction) Doctor Chen: It must be ok if I say it’s OK. I am a doctor but are you a doctor? Patient: I think there's something wrong with your operation. Wait, I'm going to the medical department to sue you! (very angry) What kind of communication does this case belong to A、crossed communication B、 complementary communication C、hidden communication D、written communication

单项选择题

“服务”选择( )表示只有在需要它的时候，才会被启动。

A.自动
B.手动
C.已禁用
D.半自动

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