下列可作为固体分散体难溶性载体材料的是（）
A.聚乙二醇类
B.聚维酮
C.微晶纤维素
D.乙基纤维素
E.泊洛沙姆
参考答案：D
With the living expense increasing rapidly, I, a fresh clerk in a company, have to take three part-time jobs, which _____ about extra $ 4,000 a year．
A．bring in
B．take in
C．get in
D．put in
