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【单选题】
端午节是中华民族重要的传统节日，已有上千年的历史。端午节习俗有赛龙舟、吃粽子等。据此信息可以推断出该习俗应该起源于A.
北方地区
B.
南方地区
C.
西北地区
D.
青藏地区
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【单选题】If you have difficulty in learning English, I have some ____ to help you.
A.
steps
B.
actions
C.
tips
【单选题】I had thought I would have difficulty in solving the problems, but as a matter of fact, I met ______.
A.
none
B.
no one
C.
nothing
D.
neither
【简答题】I have difficulty in waking up by myself in the morning. I need a(n) .
【单选题】She is suffering from obesity. It's difficult for me to walk fast and I have difficulty in breathing.中的obesity可以用以下哪个单词代替?
A.
headache
B.
stomachache
C.
toothache
D.
overweight
【单选题】I have some difficulty in finding his house. I wish I_____his address.
A.
remember
B.
remembered
C.
had remembered
D.
would remember
【单选题】I have no difficulty in making _____ understood in English.
A.
me
B.
my
C.
mine
D.
myself
【简答题】分馏与简单分馏的根本区别在于 __________________ 。在简单蒸馏中,由混合液体蒸出来的蒸汽仅仅经历很短的途径,即毫无阻碍地进入 ________ ;而在分馏中,上升的混合蒸汽须经过分馏柱后才能被冷凝收集。
【简答题】I have difficulty in this book. 我读这本书有困难。
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