King Tutankhamun______.
A.died from a blow to the head
B.died from a fracture to his left leg
C.was killed by his enemy
D.died, but his death is still a mystery
From the passage, we know fluoride ______.
A.prevents fracture because it increases bone density
B.is a safe drag to cure osteoporosis
C.makes fracture more possible because it turns bones brittle
D.is widely used to cure fracture
What is not a possible body reaction to a bone fracture?
A.You might feel lightheaded.
B.You might die immediately.
C.You might feel dizzy.
D.You might feel sick to your stomach.
A.Bush
B.Kennedy
C.Clinton
D.Fort
A.The fort had become the headquarters for the Hudson"s Bay Company.
B.Deer had begun populating the meadows around the fort.
C.Deer populations near the fort had been destroyed.
D.Crop yields in the area around the fort had decreased.
The ultimate cause of the Civil War was the bombardment of Fort Sumter.
A.only
B.final
C.true
D.special