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【单选题】
关于取代反应的概念，下列说法正确的是（）。A.
有机物分子中的氢原子被氯原子所取代
B.
有机物分子中的氢原子被其他原子或原子团所取代
C.
有机物分子中的某些原子或原子团被其他原子所取代
D.
有机物分子中某些原子或原子团被其他原子或原子团所取代
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【简答题】According to UCP600，the term “middle” of a month in the letter of credit shall be construed as from the 11th to the 20th of the month and the term “first half” of a month shall be construed as（ ）．
【单选题】According to UCP 600, the term "shipment to be made at the middle of May" in the letter of credit shall be construed as( ).
A.
from the 11th to the 20th of May
B.
from the 15th to the 25th of May
C.
fromthe 10thto the 20th of May
D.
from the 16th to the 31st of May
【简答题】敢问路在何方 ——路在脚下 201 8 年的新学期开始了,青海师范大学人文学院 17 级新闻 4班的同学步入了大三的下半学期,课程少了很多,但他们仿佛更忙碌了。 据记者了解到,该班 40名同学中,已有12名确定考研,9名确定考公务员,其余同学也分别确定考教师资格证、秘书证等方向。 对于大多数同学选择考研的现象,记者采访了几位正准备考研的同学,对于他们考研的目的,一位将姓周的同学说: “她不是很满意...
【单选题】According to UCP 600，the term“middle”of a month in the letter of credit shall be construcd as from the 11th to the 20th of the month and the term“first haIf'of a month shall be construed as ( )．
A.
from the 11thto the 20th of the month
B.
from the 1atto the 15th of the month
C.
from the 1atto the l0th of the month
D.
from the 11th to the 21at of the month
【单选题】According to UCP 600, the term 'middle'of a month in the letter of credit shall be construed as from the 11th to the 20th of the month and the term'first half'ofa month shall be construed as（ ）.
A.
from the 11 th to the 20th of the month
B.
from the 1st to the 15'h of the month
C.
from the 1st' to the 10th of the month
D.
from the 11th to the 21th of the month
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