Eating vegetables is good ________ you.[ ]
A. for
B. to
C. at
D. on
答案：A
我国国徽上的齿轮和麦穗象征着工人阶级领导下的工农联盟[ ]
首选于治疗流行性脑脊髓膜炎的药物是
A．SMZ
B．SIZ
C．SMZ—TMP
D．SD
E．SML
