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【单选题】
人们在一定的时间和空间可以发挥主观能动性改变某种风险发生的频率和损失程度,但绝对不可能彻底消灭风险。这是指风险具有( )。A.
客观性
B.
不确定性
C.
普遍性
D.
可测性
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反馈参考答案：
举一反三
【单选题】The tower was built ______.
A.
to guard the city
B.
for the people to see the sea
C.
as a church bell tower
【单选题】The main topic of this passage is______.
A.
why people built castles and their structure
B.
castles' structure and the people who lived in them
C.
castles' structure and the life in them
D.
castles' structure and the eating habit in them
【单选题】The People's Republic of China was established in 1949.
A.
founded
B.
started
C.
improved
D.
built
【单选题】When they built this office block, they gave no consideration to people in wheelchairs.
A.
wonder
B.
advice
C.
thought
D.
request
【单选题】Many people felt it was a pity that the ancient tower was and a modern building was being built. [ ]
A.
pulled off
B.
pulled down
C.
pulled up
D.
pulled in
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