环形泰勒虫的传播媒介是（）
A.陆地螺
B.钉螺
C.淡水螺
D.硬蜱
E.地螨
参考答案：D
肠痹者，数饮而（），中气（），时发向飨泄。
He will be very happy when his best friend Danny ______ back to school tomorrow. [ ]
A. will come
B. comes
C. coming
D. come
