关于口对口人工呼吸，下列说法中错误的是

A．抢救者站在一侧，一手按压患者前额，一手托住颈部，将患者的下颌向上后方翘起使其头后仰
B．开始时宜连续吹入3～4次，然后以每15秒1次的频率吹入
C．为防止吹入气经鼻腔逸出，可用按前额的手捏住患者鼻孔或在吹气时用面颊
紧贴患者鼻孔
D．吹气后放开口鼻任胸廓回缩呼气，同时观察胸廓起伏，听呼吸音
E．人工呼吸通常与胸外心脏按压配合进行

阅读理解。

Dear Sonia,

     I am having a party for my 13th birthday. Can you come to my birthday party? It will be a wonderful

party. You can listen to some pop music and you can see a big birthday cake. I think it's much bigger than

your backpack. It is as big as a desk. Did you see such a cake? It will be a special party, too. It's also a ball.

You can dance to the nice music. But you have to take a partner (伙伴；搭档). The party begins at 7:00 pm

on Friday. Welcome to my house. You will enjoy yourself! Don't forget to take a boy!

                                                                                                                                   Yours,

                                                                                                                                    Lily

1. This is an invitation _______.

A. to a boy

B. From Sonia

C. to Sonia

D. to Lily

2. There is a very _______ at the party.

A. big backpack

B. small desk

C. big cake

D. big desk

3. The underlined (画线的) word "ball" means _______.

A. basketball

B. soccer ball

C. dancing party

D. match

4. The party will be held (举行) _______.

A. in the evening

B. next Friday

C. on the weekends

D. in the morning

5. If Bob goes to the party, he may need to take a _______ with him.

A. boy

B. girl

C. ball

D. dog