圆的周长和直径的______叫圆周率，所有圆的圆周率都______，用_____

Samantha Gold is a young investor. She has many affluent friends who have made a lot of money by investing in hedge funds. Drawn by the significant potential returns, Gold has also decided to invest in hedge funds. A friend has suggested investing in a fund of funds, but Gold is concerned with the risks associated with such investing. Also, she is a relatively small investor compared to what she calls "the big hedge fund players." Which of the following two statements, in combination, about fund of funds investing, when compared to investing in individual hedge funds is most accurate

A．

B．Benefit of Fund of Funds

C．Drawback of Fund of Funds

D．①

E．Provide returns that, on a risk adjusted, are superior to investing in individual funds.

F．Only open to investors with significant capital.

G．②

H．May grant investors access to highly sought-after closed funds.

I．Returns are most likely going to be spent on additional management fees.

J．③

K．Enable investors with limited capital to invest in a portfolio of hedge funds.

L．On a risk-adjusted basis, net-of-fees performance maybe lower than that of individual funds.

陈独秀、李大钊、鲁迅等为代表的激进民主主义者，掀起新文化运动是为了[ ]

A、宣传马克思主义

B、提高工人阶级觉悟

C、建立资产阶级共和国

D、同封建复古思想斗争

在我国，科技工作的首要任务是（）。

A.促进生产

B.发展高科技

C.振兴国民经济

以下（）是英国1983年协会船舶定期保险条款规定的内容。

A.航行条款

B.延续条款

C.违反保证条款

D.终止条款

患者男性，44岁，因“左侧丘脑胶质母细胞瘤术后4周行放疗”入院。2个月前患者出现头痛，无规律，持续进行性加重。颅脑MRI示：左侧丘脑、大脑脚见不规则异常信号影，增强扫描呈不均匀明显强化，占位效应明显。1个月前行左颞顶枕肿瘤切除术。术后病理示：胶质母细胞瘤。查体：意识清楚，言语流利，双瞳孔等大等圆，光反射（+），右侧肢体肌力5-级，左侧肢体肌力正常，神经病理征（-）。既往史：无外伤，无结核等慢性疾病史。无家族性疾病史。

关于胶质母细胞瘤放疗靶区，描述正确的是（）

A.通常用增强T₁或FLAIR/T₂

B.术前及术后MRI影像确定肿瘤体积

C.CTV定义为GTV外放2～3cm

D.放疗标准总剂量60Gy，单次分割2Gy

E.放疗靶区体积大小与放射性损伤无关

F.靶区应该包括可能被肿瘤侵犯的解剖区域