已知球与球相贯，正确的正面投影是

已知两圆柱相贯，正确的侧面投影是

A、A

B、B

C、C

D、D

A、Fumble through your notes or visuals.

B、Establish eye contact with the questioner.

C、Listen to the entire question before responding.

D、Listen carefully and get ready to answer them.

A、正确

B、错误

C、错误

D、错误