200目的筛子它有两种筛比，即基本筛比和附加筛比，分别为（）。
A . ['A、https://assets.asklib.com/psource/2015071812401947268.jpg
；https://assets.asklib.com/psource/2015071812403717859.jpg
B . B、https://assets.asklib.com/psource/2015071812403717859.jpg
；https://assets.asklib.com/psource/2015071812401947268.jpg
C . C、https://assets.asklib.com/psource/2015071812401947268.jpg
；https://assets.asklib.com/psource/2015071812405434632.jpg
D . D、https://assets.asklib.com/psource/2015071812405434632.jpg
；https://assets.asklib.com/psource/2015071812401947268.jpg
