毒蛇咬伤早期缚扎的松紧度最好是
A.阻断淋巴液回流
B.阻断静脉血回流
C.阻断动脉血回流
D.患肢动脉搏动消失
E.以上都不是
参考答案:B
The ______ Method emphasizes on the importance of spoken language. Believing in the natural process of language learning and in the inductive teaching of grammar.
在一向西缓倾的沟谷中,有岩层向东倾斜,此岩层界线的“V”字形尖端()。
A、指向沟谷的下游
B、指向沟谷上游,岩层界线比等高线弯曲度要小
C、指向上游,岩层界线比等高线弯曲度大
D、与等高线弯曲方向相反