单项选择题 某设备安装工程，双方在合同中约定需要试车，根据施工合同示范文本的规定，如已具备联动无负荷试车条件，组织试车的应当是（ ）。 A．发包人 B．工程师 C．设备供应商 D．承包人

未知题型 下列在口腔就能开始消化的营养物质是（ ）。

未知题型 听力原文：W: We are going swimming tomorrow. Would you like to join us?M: I'm afraid I can't. Recently whenever I get into the pool my right leg aches.Q: Why can't the man go swimming?(18)A．He is afraid of deep water.B．He has heart trouble.C．He is too busy.D．He has leg trouble.