钢结构的防腐方法有（任举2种）涂料敷盖法和（）。
参考答案：金属敷盖法
影子汇率
Questions 11 to 18 are based on the conversation you have just heard.
A．Her boyfriend, Greg.
B．Her boyfriend, John.
C．Her Roommate.
D．Her classmate.
