单项选择题

种子萌发过程中的呼吸速率是呈________的变化规律。
A、快慢快
B、慢快快
C、快快慢
D、快快快

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单项选择题

Which of the following statements should not be the feature of writing tasks?

A.Keep a balance between accuracy and fluency.
B.Be as authentic as possible.
C.Provide sufficient preparation before writing.
D.Ideas should be given.