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Task2: Skim the text again and determine the main idea. A. Barack Obama's victory is achieved through an excellent, tightly run campaign. B. Barack Obama's victory is due to a series of historical struggles of Americans since 1830.A.
Barack Obama's victory is achieved through an excellent, tightly run campaign.
B.
Barack Obama's victory is due to a series of historical struggles of Americans since 1830.
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【单选题】An 18-year-old boy was suspected of having leukemia. It was decided to confirm the diagnosis by performing a bone marrow biopsy. The following statements concerning this procedure are correct except w...
A.
The biopsy was taken from the lower end of the tibi
B.
Red bone marrow specimens can be obtained from the sternum orthe iliac crests
C.
At birth, the marrow of all bones of the body is red and hematopoietic
D.
The blood-forming activity of bone marrow in many long bones gradually lessens with age, and the red marrow is gradually replaced by yellow marrow
E.
By the time the person becomes adult, red marrow is restricted to the bonesof the skull, the vertebral column, the thoracic cage, the girdle bones, and the head of the humerus and femur
【单选题】An 18-year-old boy was suspected of having leukemia. It was decided to confirm the diagnosis by performing a bone marrow biopsy. The following statementsconcerning this procedure are correct except wh...
A.
The biopsy was taken from the lower end of the tibi
B.
Red bone marrow specimens can be obtained from the sternum orthe iliac crests
C.
At birth, the marrow of all bones of the body is red and hematopoietic
D.
The blood-forming activity of bone marrow in many long bones gradually lessens with age, and the red marrow is gradually replaced by yellow marrow
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