能明显缓解甲亢患者的交感神经兴奋症状,也能抑制T变为T,但不引起粒细胞缺乏的药物是()
A. 普萘洛尔
B. 甲硫氧嘧啶
C. 丙硫氧嘧啶
D. 甲巯咪唑
E. 卡比马唑
查看答案
应收租赁款质押授信中租赁期限一般为()年,最长不超过()年。
A. 1年;2年
B. 1年;3年
C. 2年;3年
D. 1年;5年
Generally speaking,in the Northern Hemisphere,when winds are blowing from between SE and SW the barometric reading().
A. makes no change at all
B. is somewhat lower than it would be for winds from a northern quadrant
C. is uncertain and may fluctuate by increasing and decreasing
D. is somewhat higher than it would be for winds from the northern quadrant
直流电是由变压整流器1和变压整流器2(TR1和TR2)提供的,所有的变压整流器的最大输出为()
A. 20028V直流;
B. 18028V直流;
C. 16028V直流
对于200mm×1250mm断面的铸坯,拉速1m/min,二冷水总水量为120t/h,求其比水量?(铸坯比重7.8t/m3)