齿轮轴允许径向跳动不大于()。
参考答案:0.02-0.03
请用所给词的正确形式填空。
1. How _________ (be) Helen?
2. ________ (She) name is Jane. She is my friend.
3. Hello, _________ (me) name is Xiaomi.
4. His _________ (one) name is Tony.
5. Please _________ (call) 685-6034.
抢救枕骨大孔疝(脑室系统扩大者)最有效的急救措施是
A.20%甘露醇250ml快速静点
B.尽快行开颅减压术
C.快速颅内钻孔穿刺脑室额角,行脑脊液外引流术
D.快速静点地塞米松20mg
E.高压氧仓治疗