下列选项中，主归脾、胃、大肠经的药物是( )
A．积实B．檀香C．香橼D．佛手
参考答案：A
-We can use MSN to talk with each other on the Internet.
-Really? Will you please show me ____ it? [ ]
A. what to use
B. how to use
C. how can I use
D. what can I use
滤油机、真空泵等设备现场操作人应经过哪些组织的专门培训？
