下列()不是状态参数.
A.绝对压力
B.表压力
C.比容
D.内能
参考答案:A
聚乙二醇
A.硬脂醇220gB.十二烷基硫酸钠15gC.白凡士林250gD.羟苯乙酯0.25gE.丙二醇120g水加至1000g
After visiting the harbor in the bay, they took a tour around the downtown area, ______ they
visited many art galleries, shopping centers and had their lunch in a restaurant that served fancy foods. [ ]
A. which
B. as
C. where
D. what