心绞痛的发作多有明显的诱因，如情绪激动、寒冷等，每次发作3～5小时，休息或舌下含硝酸甘油片，疼痛可在1～3分钟内迅速缓解。
参考答案：错
句型转换。
1. She must be a teacher. (改为反意疑问句)
She must be a teacher _____ _____?
2. This person must be an English teacher. (改为否定句)
This person _____ be an English teacher.
3. Bob has a blue bike. (改为同义句)
The blue bike _____ _____ Bob.
4. Most people get sick because the weather is cold. (改为同义句)
Most people get sick _____ _____ the cold weather.
5. What does this word mean? (改为同义句)
_____ the _____ of this word?
根据《商业银行资本充足率管理办法》规定，商业银行对企业、个人贷款的风险权重一般为（）
A.0
B.20%
C.50%
D.100%
