V带传动的张紧轮应装在（）
A．松边内侧靠近小轮处
B．松边外侧靠近小轮处
C．松边内侧靠近大轮处
D．紧边内侧靠近大轮处
参考答案：C
You can use a larger plastic bottle, ____ is cut off, ___ as a pot to grow flowers in.
A．of which the top; with it’s top
B．whose top; with its top
C．whose top; the top of it
D．the top of which; with it’s top
如进一步确诊，应做何种检查()
A．放射性131I扫描
B．病理切片检查
C．B超检查
D．颈部X线检查
E．生化检查
