治疗家畜关节损伤时常使用的绷带是（） A.蛇行绷带 B.交叉绷带 C.夹板绷带 D.

在如图电路中，电源电动势为12V，电源内阻为1.0Ω，电路中的电阻R₀为1.5Ω，小型直流电动机M的内阻为0.5Ω，电流表内阻不计．闭合开关S后，电动机转动，电流表的示数为2.0A．则以下判断中正确的是（　　）

A．电动机两端的电压为1.0V

B．电动机两端的电压为7.0V

C．电动机的热功率为2.0W

D．电动机输出的机械功率为12W

患者女，32岁，午后及夜间潮热，手足心热，骨蒸颧红，心烦盗汗，失眠多梦，口干咽燥，大便干结，尿少色黄，舌红而干，或有裂纹，无苔或少苔，脉象细数，治疗应取何法（）

A.益气生血，甘温除热

B.滋阴清热

C.益气养阴

D.养血解表

E.温阳补肾

我国法学界一般认为，中标通知书是( )。

A．要约

B．要约邀请

C．承诺

D．要约表示

Dina Borzekowski made a study of a group of third-grade students from six American schools. During a school year, nearly 400 students and their parents were asked to report on whether they had such things as televisions and computers in the home, as well as how often the child used them. The children’s language ability was tested (测验) twice over the year. Children who had a television set in the bedroom but did not have a computer at home scored (得分) the lowest, while students without TV in the bedroom but with a computer at home scored the highest. Students who had a television in the bedroom over the school year scored lower than those who had their TV taken away during the same time.
"This study suggests that taking TV sets out of children’s bedrooms, or not putting them there, may be helpful," said Borzekowski. "While this study does not prove (证明) that bedroom TV was the reason for the lower test scores, it suggests that children shouldn’t have TV in their bedrooms. It also suggests that a home computer may help a child’s test scores. The best way was having both: no TV in the bedroom and also a home computer to use. \

How long did Borzekowski’s study last
[A] One year.
[B] Three years.
[C] Six years.