反向拉伸是抽筋之后的正确的做法。( )
A. 对
B. 错
胸外按压时,用力过大有可能造成伤者肋骨的骨折。( )
A. 对
B. 错
止血带扎的过松,既达不到止血的目的,还会增加出血量。( )
A. 对
B. 错
Complete the following statements with the words given.ISP (Internet Service Provider)LANemailwebsiteA(n) ________ allows people to compose, send and receive messages quickly and conveniently at any time rather than going to the postoffice and mailing a letter.