皮皮学,免费搜题
登录
搜题
【单选题】
患者,女,18岁。咳痰伴喘息2h入院。查体:喘息貌,口唇发绀,在肺部可闻及广泛哮鸣音。诊断为支气管哮喘。控制上述症状的首选药是( )
A.
氨茶碱
B.
地塞米松
C.
色甘酸钠
D.
胺醇
E.
氯苯那敏
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【多选题】If Q is large than K, which of the following expression are correct?
A.
The direction of reaction is forward.
B.
The direction of reaction is backward.
C.
The reaction favours products.
D.
The reaction favours reactants.
E.
The reaction turns to left.
F.
The reaction turns to right.
G.
The reaction Gibbs energy is large than 0.
【单选题】每个(三者之间)
A.
each
B.
every
C.
ever
D.
exact
【单选题】The country has ______people and ______money ______spent on tobacco every year.
A.
a large quantity of, a number of, are
B.
plenty of, a great deal, are
C.
a great deal of, plenty of, is
D.
a large number of, a large amount of, is
【简答题】大理石钻孔孔径为( ),深度为( )
【判断题】轴箱装置的作用是将轮对和侧架连接在一起;承受和传递轮对与转向架之间的各种载荷,承受车体重力,传递牵引力、制动力;保护轴颈,使轴颈与轴承间得到润滑,减少摩擦以防止在高速运行条件下发生热轴,保证列车运行安全。
A.
正确
B.
错误
【单选题】如果直接运用OLS法对联立方程组进行估计,则估计值是:()。
A.
无偏且一致的
B.
无偏但不一致
C.
有偏但一致
D.
有偏且不一致
【单选题】某校举行 “汉字听写比赛”, 5 个班级代表队的正确答题数如图.这 5 个正确答题数所组成的一组数据的中位数和众数分别是( )
A.
10 , 15
B.
15 , 15
C.
13 , 15
D.
13 , 20
【判断题】在线性回归模型中,如果误差满足零均值、同方差且互不相关,则回归系数的最佳线性无偏估计(BLUE, Best Linear unbiased estimator)就是普通最小二乘法估计。这里不需要假定误差满足独立同分布(iid)或正态分布,而仅需要满足零均值、不相关及同方差这三个稍弱的条件。
A.
正确
B.
错误
【单选题】希腊神话中的著名女巫()掌握着生杀予夺的魔力。
A.
地狱之神
B.
雅典娜
C.
安提戈涅
D.
美狄亚
【单选题】Unacceptably large quantities of impurities are left in the oil after the purifying process. which cause is incorrect?
A.
The oil is insuffciently heated.
B.
The throughput is too high
C.
The wrong type of gravity disc is fitted
D.
The density of impurities is too large.
相关题目: