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【单选题】
在X和Y的直线相关分析中,r绝对值越大,则:A.
各散点越靠近回归直线
B.
各散点越离开回归直线
C.
回归直线对X轴越倾斜
D.
回归直线对X轴越平坦
E.
其余说法都不是
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【简答题】are such high compressed gases and as such they combine valuable properties of both liquid and gas.
【单选题】医疗机构发现甲类传染病时，采取的下列措施错误的是（）
A.
对疑似病人，确诊前在指定场所单独隔离治疗。
B.
拒绝隔离治疗或者隔离期未满擅自脱离隔离治疗的，不得进行强制隔离。
C.
对医疗机构内的病人、病原携带者、疑似病人的密切接触者，在指定场所进行医学观察和采取替他必要的预防措施。
D.
对病人、病原携带者，疑似病人的密切接触者，在指定场所进行医学观察和采取其他必要的预防措施。
【单选题】Why do novice teacher often have problems giving clear instructions?
A.
Their language proficiency is low
B.
They are fresh form the university
C.
Their instructions are too short
D.
They are not able to target their instructions to the level of the learners
【判断题】Compressed gases will resume their original shape when released; Compressed gases produce heatbecause of molecular friction; The smaller the volume, the higher the pressure.
A.
正确
B.
错误
【单选题】__________ transport is the transportation of goods through a pipe. Most commonly, liquid and gases are sent, but pneumatic tubes that transport solid capsules using compressed air are also used.
A.
Air
B.
Rail
C.
expressway
D.
ship
E.
Pipeline
F.
tunnel
【简答题】某省爆发传染病，当地政府采取了许多措施对抗疫情，如留验观察﹑隔离治疗等强制措施。根据宪法和法律的规定，下列说法正确的是：() A中华人民共和国公民的人身自由不受侵犯。 B当地政府可以对公民的人身自由采取限制，但必须于法有据。 C对任何传染病，当地政府都可以采取强制隔离措施。 D县级以上地方人民政府可以实施隔离措施，但须经上一级人民政府批准。
【判断题】Passengers mustn't carry dangerous articles such as compressed gases, weapons, explosives, corrosives, or inflammables onto the plane.
A.
正确
B.
错误
【单选题】Why do novice teachers often have problems giving clear instructions?
A.
Their language proficiency is low
B.
They are fresh form the university
C.
Their instructions are too short
D.
They are not able to target their instructions to the level of the learners
【判断题】Passengers mustn ’ t carry dangerous articles such as compressed gases, weapons, explosives, corrosives, or inflammable on to the plane.
A.
正确
B.
错误
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