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【单选题】
交流接触器常用于远距离接通和分断( ) 的电路A.
电压至 380V 、电流至 630A
B.
电压至 1140V 、电流至 630A
C.
电压至 1140V 、电流至 1000A
D.
电压至 380V 、电流至 1000A
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【简答题】补全对话。 A: Hello! May I speak to Miss Gao? B: 1 She isn't here right now. A: Could you tell me where she is? B: She's out for lunch with her friends. A: By the way, will she come back? B: 2 Shall I take...
【单选题】听力原文：W: Hello, I am a senior student. Could you tell me whether this reference room is only for faculty members? M: No, the postgraduates and undergraduates can come too if they have their professor's...
A.
Yes, she can study there if she is writing a research paper.
B.
Yes, but she needs to have the approval of her professor.
C.
Yes, because she is a senior student
D.
No, it's open only to teachers and postgraduates.
【单选题】切口移位是指在( )作用下,使( )带上放射性标记。
A.
DNA聚合酶Ⅰ,RNA
B.
DNA聚合酶Ⅰ,DNA
C.
DNA聚合酶Ⅲ,RNA
D.
DNA聚合酶Ⅲ,DNA
【简答题】受弯构件梁的最小配筋率应取 和 较大者。
【单选题】( ), but could you tell me how to go to the Friendship Store?
A.
Good morning
B.
Hello
C.
Excuse me
D.
Thank you
【单选题】( ) ,could you tell me how to get to the railway station?
A.
Hello
B.
Excuse me
C.
THank you
【简答题】生物利用度的含义?绝对生物利用度和相对生物利用度的计算公式和用途?
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