【单选题】Which of the following is NOT said in this notice?
A.
The water may run slowly at times.
B.
The discolored water is not hazardous to health.
C.
The water will be tested for contamination.
D.
The guests can call the front desk if they are not sure of this scheduled work.
【判断题】当增加物体的段数时,物体的面数也随着增加。物体的段、面数越多,物体的表面越光滑。( )
【单选题】沉淀的形态与大小主要与沉淀条件和沉淀性质有关,( )主要取决于沉淀条件
【判断题】用移液管移取溶液之前,先用欲移取的溶液涮洗三次
【判断题】草莓果实是由花托膨大而成,果品学上称为假果。
【单选题】患儿,女,4个月,来儿保门诊检查,可认为发育异常的情况是
【单选题】"克隆"某一目的DNA的过程不包括( )
【判断题】P4生产线共4条,在第2年才建好并投入生产,它第二年共可交12个货P4。