梅沙系统机动车辆及员工验放功能分为普通汽车及员工验放、备案汽车及员工验放功能两类。
参考答案：错
Of the 2,000 stock investors______ last month, 90% was found ________ in financial knowledge.[ ]
A. surveyed; lacking
B. having been surveyed; to lack
C. surveyed; lacked
D. to have been surveyed; lack
低效消毒剂是（）
A.0.5%碘伏
B.2%戊二醛
C.两者均是
D.两者均否
