空气中含氮为()%。(体积比)。
A.0.93
B.21
C.78
D.0.26
参考答案:C
35. The construction of the gym caused much noise, it difficult for people nearby to sleep.
A.made
B.to make
C.making
D.having made
女,40岁,头晕头痛2年余,MRI检查如图,最可能的诊断为()
A.海绵状血管瘤
B.动静脉畸形
C.毛细血管瘤
D.毛细血管扩张症
E.动脉瘤