【单选题】Mr. Smith, there's been ______ and your luggage is still here.
【单选题】井下采用光电测距的作业时,测定温度读至( )℃。
【单选题】When will the passengers be able to get up again?
A.
When an air-hostess says so.
B.
When the seat-belt sign goes off.
C.
When the captain makes another announcement.
【单选题】怕热、忌湿和贵重物品(内窥镜类),首选的消毒方法是
【单选题】Mr Smith, there's a man at____ front door who says he has____ news for you of great importance.
【单选题】When will the passengers be able to get up again?
A.
When an air-hostess says so.
B.
When the seat-belt warning sign goes off.
C.
When the captain makes another announcement.
【单选题】Mr Smith, there's a man at _____ front door who says has _____ news of great importance for you.
【判断题】胆汁促进脂肪的消化和吸收,主要是通过其含有的脂肪消化酶起作用。
【单选题】井下采用光电测距的作业时,测定温度读至( )°C。