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美国发射的花了大约5个半月的时间,到达火星轨道,成为第一艘环绕别的一颗行星运行的宇宙飞船是()。
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【多选题】下列关于培养基的分批灭菌,正确的是( )
A.
在发酵罐中进行
B.
分为升温、保温、冷却三个阶段
C.
保温阶段是主要灭菌阶段
D.
冷却阶段无灭菌效果
【单选题】I would like to________the opport to congratulate you on your upcoming graduation from the City College.
A.
make
B.
give
C.
take
D.
miss
【单选题】90年代中期,Internet迅速普及,最新数据显示目前全球互联网普及率水平为 ( )
A.
11.9%
B.
21.9%
C.
31.9%
D.
99%
【单选题】Local people usually see tourism as _______.
A.
an opportunity to make a profit
B.
an opportunity to create jobs
C.
a cultural and employment factor
D.
a wealth factor in the economy of their jurisdictions
【简答题】I consider myself something of an expert on apologies. A quick temper has 36 me with plenty of opportunities to make them. In one of my earlier 37 , my mother was telling me “Don’t watch the 38 when y...
【单选题】When a new technological innovation appears, businesses should______.
A.
seize on the opportunity and invest heavily in it so as to reap its future benefits
B.
use it as a means to catch up with larger companies, if the investor is a smaller business
C.
base its actions on its research and beliefs regarding its future profitability
D.
refrain from investing heavily, in case its effect is small or none
【单选题】Facing the trend, what is the intention of movie industry?
A.
They decide to take the opportunity to make more money.
B.
They make it easier to rent movies online.
C.
They seem going to give up the benefit from the Internet.
D.
They leave the money on the table for everyone to take.
【单选题】Which of the following might be TRUE of the merged company?
A.
It can offer more work opportunities.
B.
It can produce various kinds of metals.
C.
It is the biggest producer of gold and silver.
D.
It will bring huge profits to the investors.
【判断题】按螺旋线方向分为左旋螺纹和右旋螺纹,一般用左旋螺纹
A.
正确
B.
错误
【判断题】螺纹按螺旋线方向分为左旋的和右旋的两种,一般用右旋螺纹
A.
正确
B.
错误
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