问题
选择题
—This winter H1Nl has become very popular in our country.
—Don't worry, it by our government. [ ]
A. must be control
B. can control
C. can be controlled
答案
答案：C
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—This winter H1Nl has become very popular in our country.
—Don't worry, it by our government. [ ]
A. must be control
B. can control
C. can be controlled
答案：C