胎儿与母体进行物质交换的结构是( )
A:子宫
B:胎盘和脐带
C:输卵管
D:卵巢
Being safe in your everyday life needs knowledge. If you remember the following information,your life will be much safer.● Always notice the environment around you. You shouldn't walk alone outside late at night. Make sure where the public phones are. If anything dangerous happens,you can find them easily.●Your bag should be carried towards the front of your body instead of putting it on your back。When a bus is full of people,it is easy enough for a thief to take away the things in the bag on your back.●If you are followed by someone you don’t know, cross the street and go to the other way, let the person understand that you know he or she is after you. Next,don't go home at once. You are safer in the street than you are alone in your home or in a lift.●If you have to take a bus to a place far away, try to get to the stop a few minutes earlier before the bus leaves. This stops other people from studying you. On the bus,don't sit alone. Sit behind the driver or other people. Don't sleep.
扶贫首先要在思想上“扶志”、能力上“扶智”,才能充分激发贫困群众脱贫致富的“原动力”,进而真正引领他们脱贫致富奔小康。对此理解正确的是( )
①首先“扶志”、“扶智”,因为“志”、“智”能够调控人的生理活动
②首先“扶志”、“扶智”,因为贫困的根源是意识落后于物质
③激发贫困群众脱贫致富的 “原动力”抓住了脱贫致富的内部矛盾
④“志”、“智”的引导作用是利用意识对脱贫致富的决定作用