●To determine whether or not the employee correctly understands the message, the project m

A liquid indicator sight glass is useful in determining whether or not a refrigeration sys

Whether ways will be found to stop pollution or not is just which worries the public.

The career inflection point can determine whether a business can succeed or not.A．YB．NC．NG

_____ is of no concern to me. A. It rains or not B. Whether it rains or not

What is uncertain as for the man？A．Whether to change his major or not.B．The importance of

At present, China is considering whether or not to push back the retirement age. The topic