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【单选题】
实验室中想筛选一株具有特定功能的菌株,以下做法不可行的是?A.
基于已知分子标记的高效筛选方法筛选产紫杉醇的真菌
B.
通过添加刚果红作为指示剂筛选纤维素降解菌株
C.
通过观察菌体形态筛选产多不饱和脂肪酸的真菌
D.
以纤维素为唯一碳源筛选纤维素降解菌株
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举一反三
【单选题】The writer thinks Miss Jackson is______.
A.
poor but brave
B.
friendly and talkative
C.
a teacher liked by all her pupils
D.
an example her children should follow
【单选题】The author contrasts the 1930s with the present in order to show that ______.
A.
more people ware unemployed in the 1930s
B.
social programs are more needed now
C.
unemployment now has less severe effects
D.
now there is a greater proportion of elderly and handicapped people among those in poverty
【判断题】Shipping note is issued by carrier to dock requesting allocation of shipping space.( )
A.
正确
B.
错误
【简答题】shipping order
【简答题】Zhang Lili, a young teacher from Heilongjiang, has been given the honor “the most beautiful teacher”. She risked her life to save 2 students from a high-speed bus in May.2012. She was badly inj...
【简答题】Many works of art
produced during the 1930s carried blatantly political messages.
【单选题】面向对象的开发可以潜在地减少编写软件的时间和成本,
A.
:
B.
面向对象的编程需要较少的培训。
C.
不需要迭代原型。
D.
对象是可重用的。
E.
单个用户界面对象可用于整个应用程序。
F.
没有必要使用正式的方法来设计系统。
【单选题】What is one reason for the change in the length of the workweek for the average worker in the United States during the 1930s?
A.
Several people sometimes shared a single job.
B.
Labor strikes in several countries influenced labor policy in the United States.
C.
Several corporations increased the length of the workweek.
D.
The United States government instituted a 35-hour workweek.
【单选题】____were for the first time seen as a status symbol, allied to health and time for leisure during the 1930s to 1940s.
A.
Cars
B.
Bicycles
C.
Suntans
【简答题】Dear editor, My English teacher is very strict with us. Several days ago, when we were in class, Tom asked me a question. But my English teacher thought we were speaking in class. She asked us to stan...
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