( )年,联合国教科文组织第17届世界遗产大会在法国巴黎通过了《保护世界文化和自然遗产公约》。
A.1962B.1972C.1985D.1993
参考答案:B
He found it increasingly difficult to read, ______ his eyesight was beginning to fail.
A. though B. for C. but D so
假如患者肺部有多处转移灶,则最可能的诊断是
A.睾丸胚胎癌B.睾丸畸胎癌C.睾丸绒毛膜上皮癌D.睾丸精原细胞瘤E.睾丸卵黄囊肿瘤