题目内容

This enzyme manufactures prostaglandins, substances that cause pain and inflammation.

A. Right
B. Wrong
C. Not mentioned

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According to Alexander Tomasz, the traditional tracking techniques are turning out to be efficient.

A. Right
B. Wrong
C. Not mentioned

Antibiotic resistance makes pathogens neither more difficult to treat nor harder to track.

A. Right
B. Wrong
C. Not mentioned

Section A
Directions: In this section, there are 10 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A , B, C, and D.
All my classmates have passed the physical education exam except ______.

A. John and I
B. John and me
C. I and John
D. me and John

A．Before the meal.B．During the meal.C．When the guest arrives.D．When the guest leaves.

A. Before the meal.
B. During the meal.
C. When the guest arrives.
D. When the guest leaves.