3. Attracting women into science will require a change in the culture that assumes girls are less__than boys of doing science and entering the profession.
A. suitable B. superior
C. capable D. qualified
2. If a person does not receive the gene for right-handedness he may become right-or left- handedness ___________ chance and the person’s surroundings.
A. because of B. according to
C. due to D. related to
1. When giving evidence in a law court, people are expected to tell the ________ truth.
A. maximum B. perfect
C. positive D. absolute
30、如图,为内部任一点,求证:
(1);
(2)。
29、如图,点是的内心,是的内心,是的内心,若的度数是整数,求至少是多少度?
28、如图,在中,,在上,,在上截取,求的度数。
27、△ABC中,∠A=Rt∠,∠B=60∠B的平分线交AC于D,点D到边BC的距离为2cm,则边AC的长是__cm
26、如图△ADE中,∠ADE=140且AB=BC=CD=DE,则∠A=__
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25、如图,直线表示三条相互交叉的公路,现要建一个货物中转站,要求它到三条公路的距离相等,则可供选择的地址有( )
A.1处 B.2处 C.3处 D.4处
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