【单选题】The main difference between a PAL and a GAL is ________.
A.
a GAL can implement more complicated expressions than a PAL because it has more product terms.
B.
a GAL uses EECMOS technology and is re-programmable.
C.
a PAL is designed for S0P equations while a GAL is designed for P0S.
D.
a GAL has a programmable AND and OR matrix.
【单选题】妊娠合并心脏病孕妇,第三产程胎盘娩出,立即执行的护理措施是
【简答题】GAL和PAL有何异同之处?各有什么特点?GAL的OLMC有哪几种工作模式?
【简答题】酵母细胞利用半乳糖的几种酶基因GAL7-GAL10-GALl,它们转录是如何受调控因子GAL4和GAL80调节的?
【简答题】Gal + 和gal + 的区别是什么?