车用柴油机绝大多数采用闭式喷油器，其常见的形式有两种：（）和轴针式喷油器
参考答案：孔式喷油器
一级公路土方路基下路床(路槽底面以下30～80cm范围)的压实度标准为______。
A．96% B．95% C．93% D．90%
A client who recently had a cerebrovascular accident requires a cane to ambulate. When teaching about cane use, the rationale for holding a cane on the uninvolved side is to（）
A. prevent leaning.
B. distribute weight away from the involved side.
C. maintain stride length.
D. prevent edema.
