中性粒细胞吞噬时外环境中可不需哪种物质( )
A.Ca2+离子B.K+离子C.Mg2+离子D.ATPE.Na+离子
参考答案:B
What ______________ you going to do next Sunday? [ ]
A. are
B. will
C. shall
D. won't
属于症状的是()
A.发热
B.肺气虚
C.寒湿困脾
D.肝阳上亢
E.感冒