The experts of epidemiology are trying more precise molecular trying techniques so as to d
A.Right
B.Wrong
C.Not mentioned
A.Right
B.Wrong
C.Not mentioned
Different from the first group of experts, other experts believe that ______.
A.jobs should be made more interesting
B.factories should have more complicated machinery
C.workers' wages must be sufficiently increased
D.workers should be given the freedom to do jobs in their way
Experts say walking is one of the best ways for a person to ______ healthy.
A.preserve
B.stay
C.maintain
D.reserve
Experts say the space rock is probably ______ more than $30,000.
A.weighty
B.costly
C.valuable
D.worth
A.Y
B.N
C.NG
Leading stress management experts say that life with stress would be dull and ______.
A.disorderly
B.time-consuming
C.fruitless
D.unexciting
According to experts' opinion, online promotion should he replaced by new ways.
A.Right
B.Wrong
C.Not mentioned
Very few experts ______ with completely new answers to the world's economic problems.
A.come to
B.come round
C.come up
D.come on
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