日本血吸虫的中间宿主是（）。
A.椎实螺
B.扁卷螺
C.钉螺
参考答案：C
欧洲西部工农业都很发达的国家是（ ）
A．葡萄牙
B．法国
C．瑞典
D．丹麦
Cheer up, Maria! You can also enjoy _____ you have been dreaming of, if you don’t lose heart.
A．as a convenient life as
B．as convenient a life as
C．as a life convenient as
D．convenient as a life as
