尿液检查可发现哪些蠕虫感染?各为哪个阶段?
参考答案:
丝虫感染--微丝蚴;蛲虫感染--雌虫。
I felt____after he opened the present. I thought he would have liked it.
A.interested
B.embarrassed
C.excited
D.puzzled
叙述电气产品的电气间隙和爬电距离的概念,并根据自己生产公司产品的电压等级说出一种产品电气间隙和爬电距离的具体要求值。