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【单选题】
肺气肿病人练习缩唇呼吸时,错误的动作是:A.
经鼻腔缓慢地吸气
B.
短暂屏气
C.
通过半闭的口唇缓慢呼气
D.
呼气吸气时间之比为1:2
E.
避免大口吸气或屏气
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皮皮学刷刷变学霸
举一反三
【单选题】The government has _________to forbid the employment of children under the age of 16.
A.
encountered
B.
endangered
C.
endeavored
D.
e nlarged
【单选题】There is more land in Australia than the government knows _____.
A.
what to do with
B.
how to do
C.
what to do with it
D.
to do it
【多选题】企业发生的下列存货盘亏或毁损中,不应将净损失计入营业外支出的有( )。
A.
定额内自然损耗
B.
收发计量差错造成的盘亏
C.
管理不善造成的毁损
D.
自然灾害造成的毁损
【单选题】What is the difference between side reaction and toxic reaction?
A.
Both of them belong to adverse reactions
B.
S ide reaction occurs when the dose is normal
C.
Both of them can be avoided
D.
T oxic reaction can be predicted
【多选题】下列有关导数与微分的联系,说法正确的是:
A.
函数的导数也叫函数的微商
B.
函数的导数可以看成函数的微分
C.
函数的微分是函数的导数与自变量的微分相乘
D.
函数可以求导则一定可以求出微分
【单选题】The government has ______ to forbid the employment of children under the age of 16.
A.
endeavored
B.
endangered
C.
encountered
D.
enlarged
【单选题】用 φ170mm×5mm 钢管输送水蒸气,为减少热损失,钢管外包扎两层绝热材料,第一层厚度为 40mm ,热导率为 0.093 W/(m•K) ;第二层厚度为 50mm ,热导率为 0.175 W/(m•K) 。钢管外壁面温度为 280°C ,第二保温层外表面温度为 35°C ,试求 单位管长的热量损失和两保温层间接触界面的温度。
A.
254,112
B.
125,69
C.
359,35
D.
112,280
【单选题】It was reported that the government official expressed the deepest ______ to the families of those killed and injured in this attack.
A.
satisfaction
B.
substitute
C.
symptom
D.
sympathy
【简答题】The government ______ to forbid the employment of children under the age of 16.
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