1. 角度
(1)两条异面直线所成角
(2)直线与平面所成角
(3)二面角
立体几何中的计算
15.(★★★★★)I hope to buy such a bike as________ by John.
A.rides B.is ridden C.ridden D.are ridden
14.(★★★★)This kind of books________ popular among the students.
A.is B.are C.being D.have been
13.(★★★★★)One and a half bananas________ left on the table.
A.are B.will be C.being D.is
12.(★★★★)Tom said two and three________ five.
A.be B.was C.were D.is
11.(★★★★★)A number of sheep________ died of a strange illness.
A.have B.has C.has been D.have been
10.(★★★★★)Slow and steady________ the race.
A.win B.wins C.beats D.beat
9.(★★★★)What you said________ quite to the point.
A.am B.are C.is D.were
8.(★★★★)The rich________ not always happy.
A.are B.is C.has D.have