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【简答题】
用亨利系数 E 表达的亨利定律表为 。在常压下, 20 °C 时 , 氨在空气中的分压为 69.6mmHg , 与之平衡的氨水浓度为 10(kg NH 3 (100kg) -1 H 2 O) 。 此时亨利系数 E= , 相平衡常数 m= 。
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【单选题】The distinction between passbook savings deposits and time deposits is that______.
A.
the former pay interest, whereas the latter do not
B.
the former are available only at thrift institutions, whereas the latter are available only at commercial banks
C.
the former do not have scheduled maturity dates, whereas the latter do
D.
actually there is no distinction between these two types of deposits
【单选题】Daylight time is used in many countries because______.
A.
it is an acceptable alternative for standard time
B.
it is a special convention in agricultural society
C.
it is considered an effective way to save energy
D.
it is a practice to make best use of solar energy
【简答题】大学生要成为学习的主人,要求我们树立 ( )的理念。
【单选题】—Why don’t you ________ the green shoes , Jack？? —Because I have only 10 dollars . I can’t ______ them .
A.
like ; take
B.
bring ; buy
C.
take ; afford
D.
afford ; get
【单选题】You can only borrow two books ____________ if you don’t have a library card.
A.
on time
B.
in time . from time to time D. at a time
【简答题】A.The woman calls to change the time of the appointment. B.The mans appointment for annual checkup is today. C.The man doesnt want to see Dr. Grey tomorrow. D.The man remembered the wrong time for ann...
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