被继承人所立的遗嘱必须是有效遗嘱，遗嘱继承才能成立。下列属于无效遗嘱的是（ ）
①张某有两个儿子，在张某病危神志不清时，由张某口述，小儿子执笔所立的遗嘱
②林某立下遗嘱，其遗产全部由赡养自己的女儿继承，而身强体壮、好吃懒做、从不赡养自己的儿子分文未得
③郑某在哥哥胁迫之下，立下了哥哥是其遗产的唯一继承人的遗嘱
④吴某上有70岁的母亲，下有未成年的儿子，在其病重时立下遗嘱，其全部遗产由儿子继承
A：①②③
B：①③④
C：①②④
D：①②③④
关于晨昏线与经线圈关系的表述，正确的是（ ）
I'm Simon from America. I am twelve and I'm at Wllize junior School(初中). This month We have two school events(事件). One is an English party and one is a school trip. Next month, there will be five events.
Here is a list.
Date
Event
May12
School Day
May15-17
English speech
Contest 3:00pm--4:30pm
May18
Volleyball game 2:00--3:30pm
May19
Art Festival 19:00am--5:00pm
May24
Music party 6:00--9:00pm
I'm in the school volleyball club. 1 also like singing. 1 want to play in the volleyball game and sing at the music party. 1'm very happy.
I know you have g____ up, and you want to make your own decisions.
