依据GB8076标准,下列属于掺外加剂混凝土技术指标的有()
A.泌水率比
B.含气量
C.凝结时间差
D.收缩率比
E.钢筋锈蚀
参考答案:A, B, C, D
已知△ABC中,A=30°,C=105°,b=8,则a=______.
Linda eats ________ rich food. She must change her diet.
A.too many
B.too much
C.much too
D.many too