若（），应采用较大的焊炬倾斜角，使火焰的热量集中。
A、焊件愈厚
B、导热性愈大
C、熔点愈高
D、焊接电压越高
参考答案：A, B, C
She has no friends ______ because she is new here. [ ]
A. talk
B. talk with
C. to talk with
D. to talk
下列哪种脉象不属于真脏脉（）
A.釜沸脉
B.屋漏脉
C.躁疾脉
D.解索脉
E.雀啄脉
