【单选题】Which of the following is not included in the common influencing factors for patient safety? ..........................................................................................( )
A.
Lack of nursing staff
B.
Emergency equipment is not in good condition or is not ready for use.
C.
The requirements of patients are difficult to achieve.
【简答题】写出下列单词的比较级(答案中比较级与最高级用逗号隔开): hot 2. old 3. easily 4.tall 5. clever 6. good 7. busy 8. bad 9. thin 10. early 11. fat 12. heavy 13. nice 14. happy 15. difficult