【简答题】A: Did you stop for lunch while you ____________? (shop) B: Yes, we______ lunch at 1:00. (have)
【单选题】急性外伤性颞顶部硬膜外血肿最常见的出血来源是
【简答题】已知函数 f(x)= 1 2 4- x 2 . (Ⅰ)写出函数f(x)的定义域,并求函数f(x)的单调区间; (Ⅱ)设过曲线y=f(x)上的点P的切线l与x轴、y轴所围成的三角形面积为S,求S的最小值,并求此时点P的坐标.
【单选题】设A3单元格的内容为“B6”,B6单元格的内容为“GOAL”,则()。
A.
函数INDIRECT(A3)的返回结果为“B6”;
B.
函数INDIRECT(A3)的返回结果为“GOAL”
C.
函数INDIRECT(“A3”)的返回结果为B6单元格的内容;
D.
函数INDIRECT(“A3”)的返回结果为“GOAL”。
【单选题】《铁路动车组运用维修规程》规定,CRH系列动车组的修程分为()级。
【简答题】A: Did you stop for lunch while you 1____________? ( shop ) B: Yes, we 2______ lunch at 1:00. ( have )
【简答题】设y=f(x)定义域R,对于给的正数k,定义函数 f k (x)= f(x) f(x)≤k k f(x)>k 取函数f(x)=log 2 |x|,当 k= 1 2 时,函数f k (x)的单调递增区间为______.
【简答题】Ana: Where did you go on your business trip?Chris: I ______ to Brazil and Colombia.Ana: When ______ back?Chris: I came back last night. My flight arrived at midnight!Ana: Did you have a good trip?Chri...