【判断题】作业平台上有人作业时,作业车移动的速度不得超过10km/h,且不得急剧起、停车。
【单选题】作业平台上有人作业时,作业车移动的速度不得超过()km/h,且不得急剧起、停车。
【单选题】An 18-year-old boy was suspected of having leukemia. It was decided to confirm the diagnosis by performing a bone marrow biopsy. The following statementsconcerning this procedure are correct except wh...
A.
The biopsy was taken from the lower end of the tibi
B.
Red bone marrow specimens can be obtained from the sternum orthe iliac crests
C.
At birth, the marrow of all bones of the body is red and hematopoietic
D.
The blood-forming activity of bone marrow in many long bones gradually lessens with age, and the red marrow is gradually replaced by yellow marrow
【简答题】作业平台上有人作业时,作业车移动的速度不得超过(),且不得急剧起、停车。
【判断题】( )幼儿进行室外游戏时,要求保育员观察全体幼儿的情况,不需要观察个别幼儿的表现。
【单选题】This 18-year-old boy took a part-time job to letters and parcels.
【判断题】作业平台上有人作业时,作业车移动的速度不得超过5km/h,且不得急剧起、停车。
【判断题】( )幼儿进行室外游戏时,要求保育员观察全体幼儿的情况,教师观察个别幼儿的表现。
【单选题】作业平台上有人作业时,作业车移动的速度不得超过( ),且不得急剧起、停车。
【单选题】作业平台上有人作业时,检修作业车移动的速度不得超过(),且不得急剧起、停车。