在Project 2003中,用户在建立一个项目后,可以对项目进行精确调整。
参考答案:对
―Are you still busy?
―Yes, I ________ my work, and it won’t take long.
A.just finish
B.am just finishing
C.have just finished
D.am just going to finish
铜片和锌片用导线连接后插入稀硫酸中,锌片为[ ]
A.阴极
B.正极
C.阳极
D.负极