A.customary
B.regular
C.always
D.often
What is the writer's main purpose in the article?
A.To recommend regular physical exercise.
B.To describe the dreadful nature of the backache.
C.To suggest that back problems can be remedied.
D.To explain the widespread occurrence of back pain.
A、Ordinary seamen conduct repair work.
B、Ordinary seamen paint the superstructure above the main deck.
C、Ordinary seamen take regular courses on board a ship.
D、Ordinary seamen take the tasks such as buffing, scaling, and cleaning the deck.
What is the main purpose of the conversation?
A.To outline the duties the professor requires of his teaching assistant.
B.To discuss how to best organize a teaching assistantship position.
C.To debate the best way to supplement regular instructional time.
D.To illustrate the importance of tutorials to student comprehension.
What are the main factors that determine different rates of aging?
A.Optimistic ways of life.
B.A family with three children.
C.A regular sleep pattern.
D.Heredity and life-style.
What are the main factors that determine different rates of aging?
A.Optimistic ways of life.
B.A family with three children.
C.A regular sleeping pattern.
D.Heredity and life-style.
What is IKEA's main policy for educating its staff?
A.It produces educational videos and brochures.
B.It holds special training sessions for managers.
C.It encourages regular meeting to discuss culture.
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