蛛网膜下腔出血，针对病因诊断首选的检查是（）
A.腰椎穿刺
B.脑电图
C.经颅彩色多普勒
D.全脑血管造影
E.凝血功能检查
参考答案：D
左侧继发性精索静脉曲张，应考虑的疾病是（）。
A.胰腺囊肿
B.左肾肿瘤
C.左肾囊肿
D.嗜铬细胞瘤
E.睾丸肿瘤
I ___________ some clothes to charity because some people might need them. [ ]
A. gave up
B. gave in
C. gave away
D. gave back
