根据《素问·阴阳应象大论》，壮火会
A．食气B．生气C．阳气虚D．阴气虚E．散气
参考答案：A
______ halfway through the exercise, the teacher changed his mind and collected all our papers.
A．When only being
B．When we were only
C．Being only
D．Having been
外商投资企业到中西部地区再投资，凡外资比例达到( )以上的再投资项目，可享受外商投资企业待遇。
A．40%B．30%C．25%D．20%
