7 A. Ray never sends text messages during class. B. Sometimes Ray sends text messages during class. C. Ray sends text messages often during class.

(词汇题Unit 7 text B) The company is on its _____ and shareholders will not get dividends this year.

Unit 7 Text A 课后阅读理解题 请把选择题答案填在下面空格中

8、以下HTML代码中，能将”Run Away Bridge“显示为”Verdana“字体，并且字号为”7“号的是（）。 A: <;font size=7 font=Verdana text=Run Away Bridge>; <;/font>; B: <;font size=7 face=Verdana text=Run Away Bridge>; <;/font>; C: <;font size=7 font=Verdana>; Run Away Bridge <;/font>; D: <;font size=7 face=Verdana>; Run Away Bridge <;/font>;

函数$f(x)=x+\sin x$的( )。 A: 上凸区间为$(2n\text{ }\!\!\pi\!\!\text{ },(2n+1)\text{ }\!\!\pi\!\!\text{ })$,下凸区间为$((2n-1)\text{ }\!\!\pi\!\!\text{ },2n\text{ }\!\!\pi\!\!\text{ })$ B: 上凸区间为$((2n-1)\text{ }\!\!\pi\!\!\text{ },2n\text{ }\!\!\pi\!\!\text{ })$,下凸区间为$(2n\text{ }\!\!\pi\!\!\text{ },(2n+1)\text{ }\!\!\pi\!\!\text{ })$ C: 上凸区间为$(n\text{ }\!\!\pi\!\!\text{ },(n+1)\text{ }\!\!\pi\!\!\text{ })$,下凸区间为$((n-1)\text{ }\!\!\pi\!\!\text{ },n\text{ }\!\!\pi\!\!\text{ })$ D: 上凸区间为$((n-1)\text{ }\!\!\pi\!\!\text{ },n\text{ }\!\!\pi\!\!\text{ })$,下凸区间为$(n\text{ }\!\!\pi\!\!\text{ },(n+1)\text{ }\!\!\pi\!\!\text{ })$

Preview Text A in Unit 7, and write the corresponding words according to the Chinese meaning. （预习Unit 7 的Text A，并且根据汉语意思写出相对应的单词。）1、冠军 ________2、烦扰，使难受 ________3、目标 ________4、途径；小路 ________5、安全，无危险 ________6、动机 ________

There are _____ texts. They are Text A _________________, Text B _________________, Text C _________________, Text D _________________.

(词汇题Unit 7 text B) I hope the battery of my cell-phone can hold ___ until we get help.

There five texts in Chapter 6. Text A _________________________; Text B _______________________; Text C _______________________; Text C _______________________; Text E _______________________;

对数螺线$r={{\text{e}}^{\theta }}$在$\theta =\frac{\text{ }\!\!\pi\!\!\text{ }}{2}$对应点处的切线的直角坐标方程为( )。 A: $y+x={{\text{e}}^{\frac{\text{ }\!\!\pi\!\!\text{ }}{2}}}$ B: $y-x={{\text{e}}^{\frac{\text{ }\!\!\pi\!\!\text{ }}{2}}}$ C: $y={{\text{e}}^{\frac{\text{ }\!\!\pi\!\!\text{ }}{2}}}(x+1)$ D: $y={{\text{e}}^{\frac{\text{ }\!\!\pi\!\!\text{ }}{2}}}(x-1)$