问题
单项选择题 B型题
“根据患者对治疗的反应，及时给予反馈，强化正确的反应，淡化错误的反应”属于言语治疗的治疗原则中的哪一项（）
A.早期开始
B.及时评定
C.循序渐进
D.及时给予反馈
E.患者主动参与
答案
参考答案：D
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“根据患者对治疗的反应，及时给予反馈，强化正确的反应，淡化错误的反应”属于言语治疗的治疗原则中的哪一项（）
A.早期开始
B.及时评定
C.循序渐进
D.及时给予反馈
E.患者主动参与
参考答案：D
An analyst does research about money-weighted rate of return and time-weighted rate of return. On 30 June 2010, an investor opened an account with $1000000. The account experienced the following activity over the next two years:
| Date | Withdrawals | Net Ending Balance |
| 30 June 2011 | $471000 | $451000 |
| 30 June 2012 | — | $499900 |
A. are both positive.
B. are both negative.
C. have different signs.