脑膜瘤的Gd-DTPA增强扫描增强方式可见()
A．浓密增强
B．均匀性增强
C．不均匀增强
D．并有脑膜增强
E．以上均对
参考答案：E
He felt tired after a whole day's work.No sooner________to bed than he fell asleep.[ ]
A．he had gone
B．does he go
C．had he gone
D．he did
丁基橡胶(初级形状)()
