患者陈某,男性,31岁。自觉脘腹痞塞不通,胀满难受而无块状物可及,应诊为()
A.痞块
B.痞满
C.食积
D.积聚
E.瘿瘤
参考答案:B
Mrs. Obama introduced the Let’s Move _______ yesterday. Its goal is to reduce children obesity(肥胖) today and in the future.
A.challenge
B.battle
C.campaign
D.behavior
把(a+b)当作一个因式,合并7(a+b)-3(a+b)+2(a+b)=( )