【判断题】一般而言,吸收比越大,被试品的绝缘性越差。
【单选题】如果健康的旅游者希望能在客房用餐,导游员或饭店服务人员应 ( ) 。
【单选题】It was only with the help of the local guide ______.
A.
that was the mountain climber saved
B.
when the mountain climber was saved
C.
when the mountain climber was saved
D.
that the mountain climber was saved
【多选题】青海湖国家级自然保护区西北角的鸟岛,面积不足 1 平方公里。每年 4 月来自中国南方云贵一带及印度洋岛国的( )等 10 多种候鸟在此筑巢栖息。
【判断题】并联谐振时 ,电路的 有功功率 为 0。 ( )
【判断题】0灭火时,不管使用何种灭火器,操作者都应站在下风。( )
【单选题】What are the possible roles o f a teacher?
C.
Participant,resource-provider
【单选题】It was only with the help of local guide .
A.
was the mountain climber rescued
B.
that the mountain climber was rescued
C.
when the mountain climber was rescued
D.
then the mountain climber was rescued
【单选题】根据《标准施工合同》,采用公式法调价方式考虑市场价格浮动对合同价的影响,仅适用于工程量清单中的( )部分。