通常我们可根据偶丝的软硬程度来分辨S型热电偶的正负极,以下判断正确的有()。
A.较硬的为负极
B.较硬的为正极
C.较硬的为铂铹丝
D.较硬的为镍铝丝
参考答案:B, C
More highways have been built in China, ________ it much easier for people to travel from one place
to another. [ ]
A. making
B. made
C. to make
D. having made
患者,女,60岁,患痹病十余年,长期服用驱风活络之中药。现关节酸沉,隐隐作痛,麻木,伴心悸、纳呆、乏力,脉沉缓,舌淡红苔白。治疗应首选()
A.蠲痹汤
B.姜黄散
C.防风汤
D.气血并补荣筋汤
E.六味地黄丸