如图为DNA分子结构示意图,对该图的正确的描述是( )
A:②和③相间排列,构成了DNA分子的基本骨架、
B:④的名称是胞嘧啶脱氧核苷酸,DNA聚合酶用于⑨的形成
C:DNA片段中每个脱氧核糖都连着2个磷酸,每个DNA片段中,游离的磷酸基团有2个
D:DNA分子中特定的脱氧核苷酸序列代表了遗传信息
(D)
GONE WITH THE WIND
Author:Margaret Mitchell¥25 (in bookstores)¥18 (online)
Gone With the Wind is a best﹣seller,which tells a story that happened in the American Civil War (美国内战).Scarlett O'Hara is a woman in the story who is full of energy.She is strong and saves her family but is very selfish at the same time.
A LITTLE PRINCESS
Author:Frances Hodgson Burnett¥18.3 (online)
Motherless Sara Crewe was sent home from India to school at Miss Minchin's.Her father was very rich and she lived a rich and comfortable life.Then her father died and Sara lost everything.She had to learn to do with her changed life.Her strong character made her able to fight successfully against her poverty and the scorn (嘲笑) of her fellows (伙伴).It's an excellent book with 4tapes (磁带) for children.
◆PETER PAN
Author:J.M Barrie
¥15 (in bookstores)¥12 (online)
It is a children's story full of imagination and adventures (冒险),which is aboutWendy,John,and Michael Darling's adventures in Never﹣Never Land with Peter Pan,the boy who would not grow up.The children are happy and lovely.(with 2tapes)
◆UNCLE TOM'S CABIN
Author:Harriet Beecher Stowe¥20 (in bookstores)
The most famous novel in American history,Uncle Tom's Cabin talked about the struggle between free states and slave (奴隶) states during the American Civil War and is as powerful today as when it first came out 150years ago.
•THE SECRET GARDEN
Author:Frances Hodgson Burnett¥35 (in bookstores)¥30 (online)
Mary Lennox,a sickly orphan (孤儿),finds herself in her uncle's dark house.Why are so many rooms locked?Why is one of the gardens locked?And what is that crying she hears at night?Through the power of hope,friendship,and the magic of nature,the brave girl brings the house and a long﹣lost garden back to life.
下列各句中,加横线成语使用恰当的一项是( )