枸杞子呈（）或椭圆形。
A.类纺锤状
B.圆柱形
C.长卵形
D.卵形
参考答案：A
The howto book can be of help to ________ wants to do the job.[ ]
A. who
B. whomever
C. no matter who
D. whoever
Sometimes people are amazed at how the smallest of events can ____ great changes. [ ]
A. bring up
B. bring out
C. bring in
D. bring about
