【判断题】Teacher’s Pet means the pet which a teacher keeps.
【判断题】Teacher’s pet means the pet which a teacher keeps.
【单选题】液体 B 比液体 A 易于挥发,在一定温度下向纯 A 液体中加入少量纯 B 液体形成稀溶液,下列几种说法中正确的是: prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
(A) 该溶液的饱和蒸气压必高于同温度下纯液体A的饱和蒸气压。
B.
(B) 该液体的沸点必低于相同压力下纯液体A的沸点。
C.
(C) 该液体的凝固点必低于相同压力下纯液体A的凝固点(溶液凝固时析出纯固态A)。
【单选题】The questionnaire takes _____ ten to fifteen minutes to complete and can be used along with the assessment interview. [ ]
【单选题】液体B比液体A易于挥发,在一定温度下向纯A液体中加入少量纯B液体形成稀溶液,下列几种说法中正确的是:()
A.
该溶液的饱和蒸气压必高于同温度下纯液体A的饱和蒸气压。
B.
该液体的沸点必低于相同压力下纯液体A的沸点。
C.
C.该液体的凝固点必低于相同压力下纯液体A的凝固点(溶液凝固时析出纯固态。
【单选题】The test was to______aptitude rather than academic achievement.
【判断题】A derivative is a security with a price that is dependent upon or derived from one or more underlying asses.
【单选题】The apartment was ______ at $ 20,000 and its owner was happy about that.