A. an answer
B. a way
C. a method
D. a solution
第1题:
He is a good friend of_____
A. ours
B. our
C. our's
第2题:
34.HashMapprops=newHashMap();35.props.put(”key45”,somevalue”);36.props.put(”key12”,someothervalue”);37.props.put(”key39”,yetanothervalue”);38.Sets=props.keySet();39.//insertcodehereWhat,insertedatline39,willsortthekeysinthepropsHashMap?()
A.Arrays.sort(s);
B.s=newTreeSet(s);
C.Collections.sort(s);
D.s=newSortedSet(s);
第3题:
10、Let's ________________(保持联络).
第4题:
A、listen
B、listens
C、listen to
D、listens to
第5题:
A.look at
B.look up
C.look for
D.look around
第6题:
s = "abcd1234",find()函数可以在字符串中搜索子串,s.find("cd")返回的结果是__________。