论文部分内容阅读
在考试中,有的同学一遇到似曾相识的考题,心理上便产生一种亲切感,于是往往放松对题目具体条件的细致审察,轻率地沿用某些现成的结论或解法。殊不知这正好“中”了命题人的“计”。请看如下几例。 例1 如图1,把一木块立在底板光滑的小车上,并随小车沿桌面一起向左作匀速直线运动。当小车遇到障碍物而突然停止时,车上的木块将()。
In the examination, some students encountered a kind of deja vu examination questions, a kind of intimacy in the psychological, so often relax the detailed examination of the specific conditions of the subject, and rashly follow certain ready-made conclusions or solutions. As everyone knows, this just happens to be the “means” of the proposition. Please see the following examples. Example 1 As shown in Fig. 1, a wooden block stands on a smooth car with a base plate, and along with the car, it moves to the left along the table for a uniform linear motion. When the car suddenly stops when it encounters an obstacle, the wooden block on the car will ().