题目

第二节  完型填空（共20小题，每小题1分，满分20分） A friend once told me a beautiful story of how ordinary people found a simple way to help others. My friend was 36 the beautiful view on the top of Casper Mountain, a 37 place for visitors to overlook (俯视) Casper, Wyoming. Even in the summer it was 38 on top of the mountain, and on this day he 39 a young woman who clearly had no coat. She 40 as she wrapped (用……缠绕) her arms around herself. Then he saw an older man 41 up to the young woman, take off his sweater and place it on her 42 . The man said, “Here, ke给出以下结论：（1）命题“存在x0∈R，2x0≤0”的否定是：“不存在x0∈R，2x0＞0；（2）复数z=11+i在复平面内对应的点在第二象限（3）l为直线，α，β为两个不同平面，若l⊥β，α⊥β，则l∥α（4）已知2013届九江市七校联考（一）的数学考试成绩ξ～N（90，σ2）（σ＞0），统计结果显示p（70≤ξ≤110）=0.6，则p（ξ＜70）=0.2其中结论正确的个数为（　　） A、4B、3C、2D、1