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【单选题】
下列选项不是优良产酶菌种应具备的要求的是:A.
产生的酶容易进行分离纯化
B.
繁殖快,产酶量高,有利于延长生产周期
C.
产酶性能稳定,菌种不易退化
D.
能在便宜的底物上生长良好
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举一反三
【判断题】He majored in history in college,but he turned out to be a salesman after graduation.
A.
正确
B.
错误
【单选题】设C语言中，一个short int型数据在内存中占2个字节，则unsigned short int型数据的取值范围为
A.
0~65535
B.
0~32767
C.
0~2147483647
D.
0~255
【简答题】He majored in computer when he was in college. After graduation, he became a computer ____.
【单选题】He majored in ____ literature in college, but he turned out to be a salesman after graduation.
A.
a
B.
the
C.
/
【简答题】A．He applies for this job to earn more money. B．He majored in computer in the university. C．He knows little about computer. D．He has just graduated from a university.
【单选题】设C语言中,一个short int型数据在内存中占2个字节,则unsigned short int型数据的取值范围为:
A.
0~65535
B.
0~32767
C.
0~255
D.
0~2147483647
【简答题】A．He has worked in a trading company. B．He majored in English Literature in university. C．He has worked for an American company for 4 years. D．He has studied in the U. S. A. for half a year.
【单选题】设 C 语言中 , 一个short int 型数据在内存中占 2 个字节 , 则 unsigned short int 型数据的取值范围为 :
A.
0 ～ 255
B.
0 ～ 32767
C.
0 ～ 65535
D.
0 ～ 2147483647
【单选题】He majored in ________ when he studied in university.
A.
muscle n. 肌肉; 力量; 权威，权力;
B.
ranking n. 社会地位，社会阶层;adj. 头等的; 高级的;
C.
peacemaker n. 调解人，调停人;
D.
philosophy n. 哲学; 哲理; 哲学体系，哲学思想;
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