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【单选题】
进行田间试验时,作为试验地必须具备 __________和________两个基本条件。A.
准确性、精确性
B.
均匀性、代表性
C.
精确性、均匀性
D.
准确性、均匀性
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举一反三
【单选题】According to Isaac-Mohr, increased selectivity means better students are going to all colleges.
A.
Y
B.
N
C.
NG
【简答题】平键的()是工作面,靠()的相互挤压来传递转矩。
【单选题】Section B Directions: In this section,you will hear 3 short passages. At the end of each passage, you will hear somequestions. Both the passage and the questions will be spoken only once. Afteryou hea...
A.
Ignore small details while reading
B.
Read at least several chapters at one sitting
C.
Develop a habit of reading critically
D.
Get key information by reading just once or twice
【单选题】It can be inferred from the second paragraph that ______.
A.
Isaac Asimov will make new laws to replace the old ones.
B.
the Three Laws of Robotics have been invalidated.
C.
the book I, Robot was published in Hollywood.
D.
Isaac Asimov has shifted his attention to films.
【单选题】—When did the old man die? —In 2004. He _______ for nearly ten years.
A.
died
B.
has died
C.
is dead
D.
has been dead
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