青霉素G最严重的不良反应是
A．胃肠道反应 B．二重感染． C．造血系统损害 D．肾损害 E．过敏性休克
参考答案：E
--We all know that paper is made ________ wood.
-- Yes, we can also say that wood can be made ________ paper.
A．of, from
B．of, into
C．from, into
D．from, of
其他化纤制描图布,帽里硬衬布等
