更多"Although the hazards of space trave"的相关试题:
[单项选择]How many pedestrians came to the car to ask the time
[单项选择]The major difficulty in developing space travel is that ______.
A. there is no clear destination in space
B. it is too risky and expensive for people to go beyond the orbit
C. the current space propulsion systems can not meet the needs for the long space travel
D. there is not enough energy for spacecraft to gain velocity
[单项选择]______ I a billionaire, I would travel in space like an astronaut.
A. If only
B. Wishing
C. Were
D. Should
[单项选择]Space exploration promises to open up many new territories for human settlement, as well as ______ the harvest of mineral resources.
A. leads to
B. to lead to
C. leading to
D. lead to
[单项选择]TI抗原
A. 通常是蛋白
B. 引起强的IgG应答
C. 不能产生记忆和二次应答
D. 引起抗体产生不需任何类型T细胞的参与
E. 与TCR结合并使之失活
[单项选择]
By the time of 1969, there were many space explorations.（）
A. have been
B. must be
C. had been
D. must have been
[单项选择]Travelers in space have to ______ many discomforts in their spaceships.
A. maintain
B. persist
C. endure
D. sustain
[单项选择]In space, ______ and equipment need many forms of protection.
A. pilots
B. engineers
C. astronauts
D. scientists
[单项选择]Many banks work with so many different customers and accounts that they need ______ to record all transactions.
[单项选择]Travel medicine in Britain is
A. not something anyone wants to run.
B. the responsibility of the government.
C. administered by private doctors.
D. handled adequately by travel agents.
[单项选择]The greatest celestial observatory of Neolithic times, stonehenge, is (a work) of (such) (Magnitude as it) absorbed the energies of (prehistoric Britons) for three hundred years.
A. a work
B. such
C. Magnitude as it
D. prehistoric Britons
[单项选择]属TI-Ag的物质是
A. 外毒素
B. 肺炎球菌夹膜多糖
C. 牛血清清蛋白
D. 羊红细胞
E. 卵清蛋白
[单项选择]Some companies have introduced flexible working time with less emphasis on pressure ______.
A. than more on efficiency
B. and more on efficiency
C. and more efficiency
D. than efficiency
