皮皮学，免费搜题
登录
搜题
【简答题】
（注意：请在下列二题中任选一题作答，如果多做，则按所做的第一题评分） A、（坐标系与参数方程选做题）在极坐标系中，若过点A（3，0）且与极轴垂直的直线交曲线ρ=4cosθ于A、B两点，则|AB|=______ B、若不等式 |2a-1|≤|x+ 1 x | 对一切非零实数x恒成立，则实数a的取值范围是______．
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】A．She makes good use of an ad to convince her father. B．She is easily fooled by ads. C．She didn't play much sports before. D．She wants her father's opinion about Adidas shoes.
【单选题】奶牛产后65天内未见明显的发情表现，直肠检查卵巢上有一小的黄体遗迹，但无卵泡发育，卵巢的质地和形状无明显变化。 该牛可能患有的疾病是( )。[2010年真题]
A.
卵泡萎缩
B.
卵巢萎缩
C.
持久黄体
D.
卵巢机能减退
E.
卵巢发育不良
【单选题】The derivational process, in which an item is converted to a new word class，without the addition of an affix, is called ____________.
A.
compounding
B.
back-formation
C.
functional shift
D.
derivation
【单选题】Offered the position of chairman, Smith _____, preferring to keep his current job. [ ]
A.
decreased
B.
retired
C.
left
D.
declined
【简答题】A．She makes good use of an ad to convince her father. B．She has enough money to buy Adidas shoes herself. C．She wants her father's opinion about Adidas shoes. D．She played many sports at school.
【简答题】民族同化的过程有完全同化与____同化的分别。
【单选题】The news item about the traffic accident will be followed by a detailed report made
A.
on the ground
B.
on the spot
C.
on the site
D.
on the location
【简答题】测站编号 点号 后 尺 上丝 前 尺 上丝 方 向 尺 标 尺 读 数 K+黑 减 红 1-2 平 均 高 差 下丝 下丝 黑面 1 红面 2 后视距 前视距 视距差d 视距累计差∑d 1 BMA-TP1 1427 1535 后 1204 5890 (14) (18) 0982 1119 前 1328 6114 (13) (9) (10) 后-前 (15) (16) (17) (11) (12) ...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
