椎动脉型颈椎病的主要症状不包括（）
A.眩晕性恶心、呕吐
B.视物模糊
C.手肿胀、心慌、血压不稳
D.猝倒
E.颈酸胀痛
参考答案：C
—I think pop music is pleasant.
—_________ I think it is just so-so.
A．I think so.
B．I don’t think so.
C．I agree with you.
D．Yes, you are right.
昆虫胸足有几对？它有哪些主要类型？
