图示四种应变片的布置和连接，应变片R<sub>1</sub>=R<sub>2</sub>，K<sub>1</sub>=K<sub>2</sub>。对消除温度效应而言，哪一种布置是<em>不正确</em>的（）？<img src="/Image1/3c/3ce8497758977964c389c669a907b3ec.jpg" /><br>A:<img src="/Image1/5d/5d015f734ce3338caeb281fb75a02525.jpg" /><br>B:<img src="/Image1/b6/b62a8ef43294b0166f7b0b1577e5eaa0.jpg" /><br>C:<img src="/Image1/84/8424444dddb8668cfd7cb016c6c095e4.jpg" /><br>D:<img src="/Image1/50/50c6346629cbdb228f2eb8428167afb0.jpg" />