【简答题】试比较 TD-Ag 和 TI-Ag 的特点有何异同?
【单选题】玉米茎中的维管束散在,每个维管束的外围具有
【单选题】Why did Switzer use her initials to sign up the 1967 Boston Marathon?
A.
Because she was required to do so.
B.
Because she wanted to be remembered.
C.
Because she wanted to give the public a surprise.
D.
Because she didn’t want to expose her gender before the game.
【简答题】《水浒传》中"浪里白条"所指的人物及和他相关的故事是什么?
【单选题】Why did Switzer enter the marathon again when she was 70?
A.
To commemorate the Boston marathon 50th anniversary.
B.
To celebrate her 70th birthday.
C.
To arouse the public's attention to her again.
D.
To prove the strength of the 70-year-old .