烧结矿碱度高于炉渣碱度叫（）烧结矿。
A、自熔性
B、熔剂性
C、非自熔性
D、高碱度
参考答案：B
The simple joy of reading is something we take for granted. But many people have had to _____ this pleasure because of poor eyesight.
A．give in
B．give off
C．give out
D．give up
我国《证券投资基金法》规定，基金托管人由依法设立并取得基金托管资格的( )担任。
A．证券公司 B．信托投资公司C．证券登记结算中心 D．商业银行
