【单选题】当采用氯胺消毒时,氯和氨的投加比例应通过( )确定,一般可采用重量比为3:1~6:1。
【单选题】不规则显性遗传是指在常染色体显性遗传的疾病中,( )由于某种原因不表现出相应的临床症状,而表现为正常的现象。
【单选题】不规则显性遗传是指在常染色体显性遗传的疾病中,( )由于某种原因不表现出相应的临床症状,而表现为正常,或即使发病但表现程度有差异的遗传。
【判断题】4( )在人体测量时所使用的工具有软尺和腰节带。
【判断题】在保险期间内投保人一般不会变更,但如果涉及保险人分立、合并、重组、改制、破产、清算,投保人就可能发生变更。
【单选题】Where are Melissa and Henry from?
A.
Melissa are from the United States and Henry are from Korea.
B.
Melissa is from the United States and Henry is from Korea.
C.
Melissa are from the United States and Henry is from Korea.
【单选题】当采用氯胺消毒时,氯和氨的投加比例应通过 试验 确定,一般可采用重量比为 ( )。
【单选题】Melissa and Craig are siblings _______ play basketball.
【单选题】Where are Melissa and Henry from?
A.
Melissa are from the United States and Henry are from Korea.
B.
Melissa are from the United States and Henry is from Korea.
C.
Melisa is from the United States and Henry is from Korea.
【判断题】不规则显性遗传是由于杂合子中显性和隐性基因均有一定程度的表达而引起的。