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【单选题】
【D9】 CUSTOMS OFFICER:NEXT... UH, YOUR PASSPORT PLEAS E. WOMAN: OKAY. CUSTOMS OFFICER: UH, 【D8】______ WOMAN: I' M HERE TO ATTEND A TEACHING CONVENTION FOR THE FIRST PART OF MY TRIP, AND THEN I PLAN ON TOURING THE CAPITAL FOR A FEW DAYS. CUSTOMS OFFICER:AND WHERE WILL YOU BE STAYING? WOMAN: 【D9】______ CUSTOMS OFFICER:AND UH, WHAT DO YOU HAVE IN YOUR LUGGAGE? WOMAN:UH, WELL, JUST, JUST MY PERSONAL BELONGINGS, UR N...CLOTHES, A FEW BOOKS, AND A CD PLAYER. CUSTOMS OFFICER:OKAY. UH,【D10】______ WOMAN: SUR E. CUSTOMS OFFICER:OKAY...EVERYTHING' S FIN E. UH, BY THE WAY, IS THIS YOUR FIRST VISIT TO THE COUNTRY? WOMAN:WELL,YES AND NO. ACTUALLY, I WAS BORN HERE WHEN MY PARENTS WERE WORKING IN THE CAPITAL MANY YEARS AGO, BUT THIS IS MY FIRST TRIP BACK SINCE THE N. CUSTOMS OFFICER:WELL, ENJOY YOUR TRIP. WOMAN: THANKS.A.
PLEASE OPEN YOUR BA G.
B.
DO YOU HAVE CARRY-ON LUGGAGE?
C.
WHAT IS THE PURPOSE OF YOUR VISIT?
D.
I'LL BE STAYING IN A ROOM AT A HOTEL DOWNTOWN FOR THE ENTIRE WEE K.
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反馈参考答案：
举一反三
【多选题】样品在薄层色谱上展开，10min时有一Rf值，则20min 时的展开结果是（ ）。
A.
R f 值加倍
B.
Rf 值不变
C.
样品移行距离增加，但小于 2 倍
D.
样品移行距离增加，但大于 2 倍
【单选题】Harry and Sam both denied that the fight was their .
A.
blame
B.
criticism
C.
cause
D.
fault
【简答题】我们学校是一所 民办 学校。
【单选题】In the recent past, medical researchers have shown that heart disease is associated with certain factors in our day-to-day lives: with stress, with smoking, with poor nutrition (营养), and with a (51) o...
A.
shortage
B.
failure
C.
plenty
D.
lack
【单选题】样品在薄层色谱上展开, 10min 时有一 R f 值,则 20min 时的展开结果是()
A.
R f 值加倍
B.
R f 值不变
C.
样品移行距离加倍
D.
样品移行距离增加，但大于 2 倍
【简答题】科学可以分为自然科学和( )。
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