MMR可能提供什么功能（）.
A.仅ILS
B.仅GPS
C.ILS和GPS
D.ILS和GPWC
参考答案：C
She always _____ old clothes, but now she _____ a new coat.[ ]
A. puts; wears
B. puts on; puts on
C. wears; wears
D. wears; is wearing
对流免疫电泳中，泳向阴极侧的Ig是（）
A.IgG1，IgG2
B.IgG3，IgG4
C.IgG1，IgG3
D.IgG1，IgG4
E.IgG2，IgG4
