How many ________ do you have in your city?[ ]
A. a library
B. library
C. libraries
答案:C
提出“致良知”学说,认为人人皆可以成为圣人的思想家是
A.“二程”
B.朱熹
C.王守仁
D.王夫之
血气分析仪的CO2电极属于()
A.酶电极
B.玻璃电极
C.气敏电极
D.甘汞电极
E.金属电极