Paul is colorblind. He cannot differentiate between red and green, or between yellow a
The underlined word “differentiate ” could best be replaced by _______
A、share
B、distinguish
C、merge
D、unite
The underlined word “differentiate ” could best be replaced by _______
A、share
B、distinguish
C、merge
D、unite
Paul is working hard these days. He _______ pass the exam this time.
A.has to
B.shall
C.may
D.need
(A) As poor as Paul was
(B) As Paul was poor
(C) Poor as Paul was
(D) Since Paul was poor
1. When did the children go skating?
A. After breakfast.
B. Before supper.
C. After lunch.
D. At lunch.
2. How many children skated on the lake?
A. Three.
B. Four.
C. Five.
D. Six.
3. Who skated best of all the children?
A. Allen did.
B. Paul did.
C. Bill did.
D. Worker did.
4. Why did Paul fall into the water?
A. Because he skated fast.
B. Because he was not good at skating.
C. Because he didn’t know the ice there was broken.
D. Because he skated slow.
5. Who helped Paul?
A. His friends.
B. His parents.
C. Two workers.
D. Betty.
A.1,790元
B.1,990元
C.1,848.8元
D.1,890.5元
A.Y138000
B.¥60000
C.¥78000
D.¥230000
以下哪一位科学家所提出的侧链思想是现代药物靶点理论的雏形?()
A.发明氟哌啶醇和芬太尼的Paul Janssen
B.发明胂凡纳明的Paul Ehrlich
C.发明普萘洛尔和西咪替丁的James Black
D.发明百浪多息的Gerhard Domagk