问题
选择题
My parents and I like to _____ outside after dinner. It is really relaxing. [ ]
A. run off
B. hang out
C. dress up
答案
B
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My parents and I like to _____ outside after dinner. It is really relaxing. [ ]
A. run off
B. hang out
C. dress up
B
2 （2）H2O （3）CCl4 （4）Na2O2 （5）NaOH （6）Na2O