公民在享受临床用血优惠政策时“直系亲属”是指:()
A 献血者的配偶、父母、子女
B 献血者的配偶、父母、岳父母、公婆
C 献血者的配偶、父母、姐妹、兄弟
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A rectangle is equal in area to a square with sides of length 12. Is the diagonal of the rectangle greater in length than 20?
(1) The rectangle has a length of 16.
(2) The rectangle has a width of 9.
In isosceles triangle ABC, what is the value of ∠C?
(1) The measure of ∠B is 47°
(2) The measure of ∠A is 90°