已知雪花牛肉的成本率是55%,则该菜肴的销售毛利率为() ["45%","50%","55%","60%"]
间质性肺疾病的症状常出现在职业性粉尘接触后() ["15~30年","10~30年","5~20年","10~20年","20~30年"]
下述关于心境障碍的临床表现说法正确的是() ["心境障碍没有幻觉","心境障碍没有妄想","心境障碍没有思维散漫","心境障碍可伴有幻觉、妄想和思维散漫","心境障碍常伴有幻觉、妄想和思维散漫,且与情感不协调"]
关于细胞成分的特性,正确的说法是() ["Hb为碱性物质","中性颗粒为酸性物质","细胞核蛋白为碱性物质","嗜酸性颗粒为酸性物质","淋巴细胞胞质为嗜酸性物质"]
抑郁发作睡眠障碍的特点是() ["入睡困难","多梦","早醒","易惊醒","睡眠过多"]
在什么情况下,权利人应当申请房屋所有权变更登记?