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【单选题】
下列与基因工程无关的是( )
A.
杂交育种
B.
基因治疗
C.
蛋白质工程
D.
培养利用“工程菌”生产胰岛素
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参考答案:
举一反三
【多选题】监视与诊断过程中的信号检测必须满足以下( )的要求。 A 随机性 B 在线性 C 实时性 D 一致性
A.
随机性
B.
在线性
C.
实时性
D.
一致性
【单选题】I was told that my father had emailed me the other day, but I didn't receive ________. [     ]
A.
it
B.
one
C.
anything
D.
nothing
【单选题】----I didn't receive any e-mail from you,why? ----( )
A.
Oh,my compuer is down.
B.
It doesn't matter.
C.
I think it's OK.
D.
Never mind.
【单选题】I was on __________ last week and didn't receive your fax.
A.
vacation
B.
vocation
【单选题】在下列有关Windows操作系统(这里指Windows 95及其以后的版本)的多任务处理功能的叙述中,正确的是( )。
A.
在多任务处理过程中,宏观上前台任务与后台任务都能得到CPU的响应(处理)
B.
由于CPU具有并行执行指令的功能,所以操作系统才能同时进行多个任务的处理
C.
如果用户只启动一个应用程序,那么该程序就可以自始至终地独占CPU
D.
Windows操作系统采用协作方式支持多个任务的处理
【单选题】He said he had called me to return home, but I didn't receive _____. [     ]
A.
one
B.
it
C.
anyone
D.
anything
【单选题】I wrote to that company a week ago, but I didn't receive any reply.
A.
information
B.
answer
C.
word
D.
message
【简答题】Getting plenty of exercise is very important. I enjoy swimming very much. Last summer I went to the beach every day. I plan to go there this summer too, but I may not be able to, I have a new job. Som...
【单选题】I ______ a letter from him since he left. [     ]
A.
didn't receive
B.
haven't got
C.
didn't have
D.
haven't had
【单选题】I______ from him since he left. A. didn't receive B. haven't got C. didn't have D. haven't heard
A.
didn't receive
B.
haven't got
C.
didn't have
D.
haven't heard
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