还有一周要考了，请问几道PP题，万分感谢！！

PP2_2
43. Including land and water, the state of Alaska ______ an area of 1,530,700 square kilometers, equal to about one-sixth of the size of the United States.
A. having
B. where there is
C. which is
D. has
我选C，答案是D,这个句子的谓语是equal，如果选has不就有两个谓语了。多谢解答？？

48. Desktop publishing systems are capable of ______ camera-ready pages made up of textand graphics, with text set in different typefaces and sizes.
A. when producing
B. produce
C. to produce
D. producing
我选的D，因为有be capable of doing 的用法，不明白为什么选A？when 能和前面的of联用吗？困难是弹簧版主给的答案是D，希望能给解答？？

49. The femur is the ______ in the body.
A. bone is the largest and longest
B. largest and the longest bone that
C. largest and longest bone
D. bone largest and longest and
我选的C，可答案是B,我认为B没有道理，尤其是后面的the longest重复，希望能帮我解答？

43.D中的has作谓语，equal to 前面省略了which is,所以逗号后面的做同位语从句。

48题你看错答案了,是选D

49题你也看错答案了，应该是C,B肯定不对，有个连词却没有动词！

43题如果equal时作动词应该是equals