I suggested that we ______ this problem in another way, but he insisted that he ______ it successfully in his way. [ ]
A.
do with; could deal with
B.
should do with; dealt with
C.
did with; dealt with
D.
did with; should deal with
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【单选题】三根平行的长直导线,分别垂直地通过一个等腰直角三角形的三个顶点,三导线中电流方向相同, A 、 B 两导线中的电流大小相同,如图 4 所示,已知导线 A 在斜边中点 O 处所产生的磁场的磁感应强度大小为 B ,导线 C 在斜边中点 O 处所产生的磁场的磁感应强度大小为 2 B ,则 O 处的磁感应强度的大小和方向 为