A. for
B. in
C. on
D. to
第1题:
听力原文:W: Who's your new secretary, Tom?
M: I'm pleased with the work she's been doing so far.
What do we know about Tom's secretary?
A.She's not efficient.
B.She's often late.
C.She's capable.
D.She's honest.
第2题:
10.1 have a good friend.______ name is Jane._____ is thirteen.
A. Her ; Her
B. She's; She
C. Her;She
D. She;She
第3题:
第4题:
According to the passage, what do the three people have in common?
A. Courage
B. Devotion
C. Hard work
D. Self-confidence
第5题:
第6题:
对于任一个频繁项集X和它的一个非空真子集Y, S=X-Y,规则S→Y成立的条件是()。
A.confidence(S→Y)<minconf
B.confidence(S→Y)≥minconf
C.confidence(Y→S)<minconf
D.confidence(Y→S)≥minconf