______
A. Whether spacemen carry weapons.
B. How spacesuits protect spacemen.
C. How NASA trains its spacemen.
D. What spacemen eat and drink.
______
A. It might not work.
B. Consumers will finally benefit from it.
C. It is good for oil industry.
D. It should also be imposed on other industries.
______
A. Because he had a heart attack after the earthquake.
Because he jumped from a fourth-floor balcony.
C. Because he was badly injured during the quake.
D. Because he suffered a stroke after the earthquake.
______
A. Reading its ads in the newspapers
B. Calling its personnel department.
Contacting its manager.
D. Searching its website.
______
A. There is more specialized work.
B. Some projects can last over a year.
C. Some projects may last less than a day.
D. No administrative work is available.
微信支付 
支付宝支付