由于血脑屏障破坏所致的肿瘤增强是（）。
A.脑膜瘤
B.垂体瘤
C.听神经瘤
D.胶质瘤
E.三叉神经瘤
参考答案：D
Lincoln’s mother did ___ many books ___ him.
A．what she had buy, to
B．what she could buy, for
C．all that she had to buy, to
D．all she could buy, for
有关防止术后肺不张的措施，错误的是
A．术前锻炼深呼吸
B．防止术后呕吐物吸人
C．急性上呼吸道感染病人应先控制感染
D．及时应用镇咳药控制咳嗽
E．嗜烟者应术前1周禁烟
