无限循环小数\(0.777\cdots\)化为分数为( ). A: \(<br/>{7 \over {11}} \) B: \(<br/>{7 \over {10}} \) C: \(<br/>{7 \over 9} \) D: \(<br/>{7 \over 8} \)

计算 \(\int_{\;L} {\left( {x + y} \right)dx + \left( {y - x} \right)dy} \)，其中\(L\)是抛物线 \(y^2=x\)上从点\((1,1)\) 到点\((4,2)\)的一段弧。 A: \( { { 35} \over7}\) B: \( { { 36} \over 5}\) C: \( { { 37} \over 6}\) D: \( { { 34} \over 3}\)

over 7) __________ of land

函数\( f\left( x \right) = {x^3} \)在区间\( \left&#91; {1,2} \right&#93; \)上满足拉格朗日中值定理的数值\( \xi \)=（ ）. A: \( { { \sqrt {21} } \over 3} \) B: \( { { \sqrt {21} } \over 7} \) C: \( {7 \over 3} \) D: \( {3 \over 7} \)

In order to make a reservation over telephone, there are （）steps to follow. A: 5 B: 6 C: 7 D: 8

When will the basketball match be over（） A: 7:30. B: 5:30. C: 5:00. D: 4:00.

Members of the House of Representatives must over 35 years old and must have been an American citizen for at least 7 years.

Over 7% of school children attend independent fee-paying schools,or______ schools. A: public B: primary C: secondary D: private

7) Fast foods offer convenience but they ______ of nutrition.A. fall short B. fall over C. fall down D. fall on A: fall short B. fall over C. fall down D. fall on B: fall over C. fall down D. fall on C: fall down D. fall on D: fall on

I have warned you not to do that __________. A: over and over B: over and over again C: again and over D: again and again over