图1直角坐标系xOy中的曲线是二次函数y=f(x)=()。
A.
B.
C.
D.
参考答案:B
根据下列句子中所给汉语意思,写出空缺处各单词的正确形式。(每空限填一个词)
1. Can you ______ (拼写) your name, please?
2. Singing is a good way to make people ______ (害羞).
3. ______ (夏季) comes after spring.
4. Does it take you two ______ (小时) to do your homework every day?
5. Please remember to ______ off (关) the lights.
6. Hurry up, or you will be ______ (迟到) for class.
患者女,55岁,下腰痛,左下肢活动不利。
根据上述分析,最后的诊断应为()
A.神经鞘瘤
B.神经纤维瘤
C.椎间盘脱出,伴髓核向下游离
D.转移瘤
E.脊膜瘤
F.淋巴瘤