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【简答题】
tRNA的二级结构形状是三叶草型的，三级结构形状是_________。
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皮皮学刷刷变学霸
举一反三
【单选题】The primary purpose of this text is to ________.
A.
explain Jefferson's ideas of democracy
B.
exalt Jefferson as an outstanding philosopher
C.
illustrate Jefferson's influence on modern politics
D.
view Jeffersonian democracy under modern conditions
【单选题】–Excuse me, but can you tell me which road I should take to the post office? --______ of the four roads will do.
A.
Any
B.
Neither
C.
Both
D.
Every
【单选题】A post road is a road designated for the transportation of___.
A.
pedestrains
B.
cars
C.
carriages
D.
mails
【简答题】为了避免同一个头文件在同一个文件中被直接或者间接重复包含,可以使用_________
【单选题】The primary purpose of this text is to ______.
A.
explain Jefferson' s ideas of democracy
B.
exalt Jefferson as an outstanding philosopher
C.
illustrate Jefferson' s influence on modem politics
D.
view Jeffersonian democracy under modern conditions
【简答题】沉积物沉积后,经历的主要成岩作用类型有: 1 、 2 、 3 、 4 、 5 、 6 等。 从“ 压实和压溶作用、同生作用、胶结作用、风化作用、交代作用、重结晶作用、生物作用、溶蚀作用、粘土矿物转化、化学分异作用 ”
【简答题】__________ the road，and you will come to the post office. [A] If you were to turn off [B] Turn off [C] Turning off [D] Having turned off
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