A:酶促反应速率的加快
B:渗透压下降
C:细胞代谢紊乱
D:糖尿病
—Guess what? I happened to have met Mark at the party last week.
—If my memory serves me correctly, you two ________ each other for almost ten years.
—I'm sorry, but I _______ when to meet.
读课文《张衡》,回答问题
《张衡》叙述的是我国____时期科学家____发明____的事。课文通过对地动仪发明过程的介绍,赞颂了张衡____的科学精神和为我国科学事业做出的____。