出口商办理装运后，凭以向船公司换取提单的凭证是( )。
A．装货单 B．商检证书C．船长收据 D．大副收据
参考答案：D
The little girl was allowed to go swimming ____ she must keep herself near her father.
A．when
B．in case
C．in order that
D．on condition that
用于代替被测模块调用的子模块的模块被称作______。
A．桩模块
B．数据模块
C．接口模块
D．驱动模块
