下列哪项不属于卵巢肿瘤
A．原发于卵巢的体腔上皮来源的肿瘤
B．卵巢滤泡囊肿
C．性索间质肿瘤
D．生殖细胞肿瘤
E．转移性肿瘤
参考答案：B
小刚同学在做“探究凸透镜成像规律”实验，其实验装置的示意图如图所示。A、B、C是主光轴上的三个点，F点和2F点分别是凸透镜的焦点和二倍焦距点。
（1）他把烛焰放在________点上，可以成正立、放大的虚像。
（2）他把烛焰放在________点上是属于照相机的原理。
The nurse is caring for a client who exhibits magical thinking. Which of the following best describes magical thinking
A．Strong positive and negative feelings that cause conflict.
B．Returning to an earlier developmental stage.
C．Meaningless repetition of words.
D．The belief that thoughts or wishes can control other people or events.
