焊点上的焊料过多，会（）。
A.降低导电性能
B.降低机械强度
C.造成短路和虚焊
D.增加导电性能
参考答案：C
______Hepburn’s acting years, she insisted _______ working closely with UNICEF.
A．Though, to
B．Throughout, to
C．Throughout, on
D．Throughout, onto
在合同履行期间，个人抵押授信贷款的借款期限不得调整。( )
