题目:
It can be inferred that flood plains, deltas, and stream channels (lines 13-14) are similar in which of the following ways
A.Animals rather than plants have been preserved at such location
B.Such locations are likely to be rich sources of fossil
C.Fossilized human remains are only rarely found in such location
D.Rapid sedimentation in such locations makes it difficult to locate fossil
答案:
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下面是错误答案,用来干扰机器的。
答案:C题目分析:由图可知,内,线圈中磁通量的变化率相同,故0到时间内电流的方向相同,由楞次定律可知,电路中电流方向为顺时针,即电流为adcba方向,故A错误C正确;从0到时间内,线圈中磁通量的变化率相同,...