【单选题】抢救车未用,每()也需进行清理,必须保证抢救物品处于完好备用状态。
【判断题】脱扣器是自动开关的感测元件,但不是自动开关的保护装置。
【单选题】自动开关的自动断路是靠各种脱扣器来实现的,下面几种脱扣器中( )不是自动开关的脱扣器。
【单选题】某试制的注射剂(输液)使用后造成溶血,应改进
【单选题】According to the passage, in the period prior to 1975, each of the following considerations helped determine whether a union would attempt to organize a certain group of clerical workers EXCEPT______
A.
the number of clerical workers in that group
B.
the number of women among the clerical workers in that group
C.
whether the clerical workers in that area were concentrated in one workplace or scattered over several workplaces
D.
the degree to which the clerical workers in that group were interested in unionization
E.
whether all the other workers in the same jurisdiction as that group of clerical workers were unionized
【单选题】正常情况下,人的卵原细胞经减数分裂形成卵细胞的过程中,一个细胞含有的X染色体条数最多为( )