题目内容

In carrying out the plan we are likely to come across difficulties, but we are determined to ____them all.

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Without increasing investment in education, it will be increasingly difficult for low-income people to ____the middle class.

All the passengers in the plane that crashed in the middle of the Andes Mountains a week ago were ____as dead.

7.下列哪项不是白斑的病理改变

A. 可有过度正角化或过度不全角化
B. 粒层明显
C. 可有非典型性细胞
D. 棘层增生
E. 固有层和黏膜下层有淋巴细胞和浆细胞浸润

9.当白斑癌变时，除了上皮异常增生表现外，肯定出现

A. 上皮不全角化层
B. 粒层明显
C. 棘层增生
D. 上皮钉突伸长且变粗，但仍整齐，基底膜清晰
E. 固有层和黏膜下层有淋巴细胞和浆细胞浸润