【单选题】执行下列程序段后,ch,x,y 的值正确的是( ) int x=3,y=4; boolean ch; ch=x
【多选题】The absorptive cell of small intestinal mucosa( )
A.
Its microvilli increase absorptive area
B.
cell coat lining the cell surface contains variety of digestive enzymes
C.
sER in cytoplasm takes part in the formation of chylomicron
D.
all absorbed substances enter blood
E.
intercellular tight junctions insure the selective absorption
【多选题】变压器绕组折算的原则是:归算不改变变压器内部的电磁平衡关系,也就是说( )。
【单选题】.It’s reported that _______ fans have voted for their favourite singer online.
【多选题】为增加易水解药物的稳定性,可采取的措施有()