固体物料粉碎的目的是什么？
参考答案：增大原料的比表面积；使内含物与介质水和生物催化剂酶接触面积增大；加速物料内含物的溶解与分离。
阅读理解。
1. The zoo opens _____ a week.
A. two days
B. five days
C. six days
D. seven days
2. On Tuesday, the zoo closes at _____.
A. 5: 30 p.m.
B. 6:00 p.m.
C. 6:30 a.m.
D. 8: 30 a.m.
3. On Wednesday, the zoo is open for _____.
A. 8 hours
B. 8.5 hours
C. 9 hours
D. 9.5 hours
4. The zoo is in the city called _____.
A. Xiaohe
B. Binhai
C. Changchun
D. Beibei
5. Beibei is 11 years old,and this Sunday she wants to visit the zoo with her parents. How much
should they pay for the tickets?
A.￥20.
B.￥30.
C.￥40.
D.￥50.
前臂缺血性肌挛缩多见于（）
A.肱骨髁上伸直型骨折
B.肱骨干骨折
C.尺骨上1/3骨折
D.肱骨髁上骨折晚期
E.桡骨远端骨折
