后张法预应力混凝土T形梁施工时，预应力筋的张拉应以()控制为主。
A.伸长量
B.摩阻力
C.应力
D.梁跨中上挠值
参考答案：C
At the age of 29, Dave was a worker, _____ in a small apartment near Boston and ______ what to do about his future.
A．living; wondering
B．lived; wondering
C．lived; wondered
D．living; wondered
持卡人已致电总行信用卡中心客户服务部办理贷记卡销户申请（）日后，可到农行网点办理余款结清业务。包括销户取款、销户转账和销户还款。
A.30
B.40
C.45
D.50
