在西门子S7-200SmartPLC中,SM寄存器是指:
A. 输出寄存器
B. 输入寄存器
C. 中间寄存器
D. 特殊功能寄存器
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程序编辑中,车辆出库时剩余车位数应增加,则所用的指令应为
A. INCB
B. DECB
C. INCW
DECW
程序编辑中,车辆入库时剩余车位数应减少,则所用的指令应为
A. INCB
B. DECB
C. INCW
DECW
Direction:Please whether the following statements are true(T/t) or fasle(F/f).1. You should worry about what you are not doing.2. There are many clubs or organizations on campus.3. It is important to get out of your dorm.4. You need to put your mental and physical health before anything else.5. If you miss a class, you must see your professor immediately.6. If you need money, you can try to find a part-time job.7. Nobody knows what higher education is before going to college.8. Practice will help you deal with your problems better.
有关老年人药物代谢的特点不正确的说法是()
A. 药物消除慢
B. 口服相同剂量的同一药物,血药浓度较年轻人高
C. 体重下降,肝血流量升高,生物利用度下降
D. 肝功能下降,生物转化变慢
E. 药物肾清除率明显下降