— Everything for the project has been progressing smoothly so far.

--- ____ that you’ll complete it on time.

A．No wonder

B．No doubt

C．No need

D．No worry

异步电动机的过载系数λ一般在（）之间。

A、1.2～1.5

B、1.5～1.8

C、1.5～2

D、1.8～2.5