某钢铁厂八月份生产钢铁2460吨，比计划增产60吨，增产百分之几？
60÷，
=60÷2400，
=2.5%．
答：增产2.5%．
It is really a bad news that after his father died last year his mother ______ a terrible disease this year! How sad he is now!
A．picks
B．develops
C．takes
D．receives
微晶纤维素（）
A．胃溶性薄膜衣材料
B．干粘合剂
C．固体分散体载体材料
D．膜剂的成膜材料
E．助流剂
