钻屑法检测时可根据现场情况，不必依据措施要求确定钻孔间距、深度。
参考答案：错
0×8=0÷8______（判断对错）
--I once got lost during my first visit to Beijing.
-- Oh, did you? You ____ me as your guide.
A．might have asked
B．could ask
C．would have asked
D．would ask
