Unit test

1、单选题：
‏（    ）which is a method to improve the quality and production performance of cattle through selection, selection and Cultivation in a cattle breed.‎‏‎
选项：
A: Hybrid breeding
B: MOET
C: Molecular breeding
D: Breeding of this variety
答案: 【 Breeding of this variety】

2、单选题：
​Cross breeding is an effective way to create new varieties through (   )  varities.‎
选项：
A: two
B: three
C: three or more than three
D: two or more than two
答案: 【 two or more than two】

Unit test

1、单选题：
‎Under good feeding conditions, cattle are prone to accumulate a large amount of (   ) at 24 months old.‍‎‍‎‍
选项：
A: Protein
B:  carbohydrate 
C: fat 
D: connective tissue
答案: 【 fat 】

2、单选题：
‏The principle of measuring tenderness of beef with tenderness meter is to measure muscle fiber (    ).‎‏‎‏‎
选项：
A: Viscous resistance
B: shear resistance
C: elastic resistance 
D: tensile resistance
答案: 【 shear resistance】

3、单选题：
‏The important substance for the special flavor of beef is (    ) in beef.​‏​‏​
选项：
A: Benzoic acid
B: pyruvate
C: fatty acid
D: amino acid
答案: 【 fatty acid】

4、单选题：
‎Standard milk, also known as milk fat correction milk (FCM), has a milk fat ratio of (    ).‌‎‌‎‌
选项：
A: 4.5%
B: 4.0% 
C: 3.5%
D:  3.0%
答案: 【 4.0% 】

Unit test

1、单选题：
​The criteria for fattening cattle are mainly as follow (    ).‌
选项：
A: body condition
B: The chest
C: Body height
D: Body lengt