问题
单项选择题
（）是决定选别段数的主要因素。
A、矿物有价成分及其矿物组成
B、矿石硬度
C、矿石嵌布特性
D、矿物的可浮性
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
（）是决定选别段数的主要因素。
A、矿物有价成分及其矿物组成
B、矿石硬度
C、矿石嵌布特性
D、矿物的可浮性
参考答案：A
| For Children Museum: Children’s Museum, Sundays, 89 North Street, 67641235 Story time: Children’s Library, 106 Green Street, Wednesdays during 9:30 am ~5:00 pm 66599624 Sports: Soccer Club, Tuesdays and Thursdays, 16 Yangtze Road, 96725643； Basketball Club, Wednesdays and Fridays, 79071632 Cinema: New films for children, 108 Green Road, 69001354 |
| Useful Phone Numbers Fast Food Restaurant: 66387901 Hospital: 68787451 Visitor Information Center: 800-120-9847 Taxi: 79210583 Visitor Hotel Information: 800-739-7302 |
A．visit the museum
B．play soccer
C．play basketball
D．play the guitar小题2:．If children want to watch new films, they should go to .
A．16 Yangtze Road
B．89 North Main Street
C．106 Green Street
D．108 Green Road小题3:．If you dial (拨号) 66387901, you can .
A．ask for some hotel information
B．do some shopping
C．have a good story time
D．order fast food in a restaurant小题4:．Lily’s father is ill. She should dial .
A．800-120-9847
B．79210583
C．6878745l
D．96725643小题5:．You can not get any information about from the two notices．
A．looking for a hotel
B．doing eye exercises
C．eating fast food
D．taking a taxi