采用冷拉调直钢筋时，Ⅰ级钢筋冷拉率不大于（）
A、2%
B、4%
C、8%
D、10%
参考答案：B
Some children want to challenge themselves by learning a language different from _____ their parents
speak at home. [ ]
A. what
B. that
C. which
D. one
建设银行于（）年8月向社会推出了网上银行个人客户服务。
A.1999
B.2000
C.2001
D.2002
