细胞色素C过敏试验皮内注射剂量为（）。
A.0.075mg
B.0.75mg
C.7.5mg
D.75mg
E.0.75μg
参考答案：A
Sarah Brightman, ________ will fly to space in 2015, is the first woman to fly there in the field of music.
A．who
B．that
C．which
D．whose
下列哪个选项不在世界四大文明古国之列( )
A．巴比伦 B．雅典 C．埃及 D．印度
