主要用于保管合同、运输合同、加工承揽合同等主合同的担保形式是()。
A.保证
B.抵押
C.质押
D.留置
参考答案:D
Tom is sad. Everyone is trying to _______. [ ]
A. cheer him up
B. pick him up
C. dress him up
D. call him up
急性炎症性脱髓鞘性多发性神经根神经病()。
A.脑脊液正常
B.多有昏迷
C.脑脊液有蛋白-细胞分离现象
D.突然劈裂样剧烈头痛
E.病情在24小时内自行缓解