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【单选题】
下列DNA双螺旋结构的叙述，正确的是A.
一条链是左手螺旋，另一条链是右手螺旋
B.
双螺旋结构的稳定纵向靠氢键维系
C.
A+T与G+C的比值为1
D.
两条链的碱基间以共价键相连
E.
磷酸、脱氧核糖构成螺旋的骨架
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【单选题】A: Good morning, Peter. How are you? B: ______A: Very well, thank you.
A.
Just fine, Ann, and you?
B.
It's very nice of you.
C.
See you later.
D.
I am so glad to meet you.
【单选题】下列有关肾癌的描述，错误的是（）
A.
肾细胞癌是最常见的肾脏恶性肿瘤
B.
动态增强扫描早期常明显强化
C.
延迟期肿瘤一般仍强化明显，且高于肾实质
D.
20%的肾癌为低血供肿瘤，在毛细血管期强化不明显
E.
肿瘤的包膜在MRI上常可观察到
【简答题】Task 2 How can this e-business benefit the company?(按照由上而下的顺序填空) Situation: Serena and Peter are staff in a bedding (床上用品) company. They are talking about setting up an e-business department. Serena:...
【单选题】1884年李鸿章与法国海军军官福禄诺进行谈判并于5月11日在天津签订了《中法简明条约》,以下不属于该条约内容的是( )。
A.
中越边境开埠通商
B.
中国军队撤回边境
C.
对法赔款
D.
同意对于法越间“所有已定和未定各条约”不加过问
【单选题】How did Peter feel aften he was given an injection?
A.
He felt much better physically.
B.
He felt much better emotionally.
C.
He felt good enough to eat a cow.
D.
He felt he could run a few laps.
【简答题】Calculating Present Value of Annuities Peter Lynchpin wants to sell you an investment contract that pays equal $17,500 amounts at the end of each year for the next 20 years. If you require an effectiv...
【多选题】1884年李鸿章与法国海军军官福禄诺进行谈判并于5月11日在天津签订了《中法简明条约》,以下属于该条约内容的是( )。
A.
中越边境开埠通商
B.
中国军队撤回边境
C.
对法赔款
D.
同意对于法越间“所有已定和未定各条约”不加过问
【单选题】Peter: Just how an advertising agency wants you to see McDonald's.3)______________________. When they make TV commercials, they use scientific methods to learn what you’ll like and buy.
A.
You're the one they want to reach
B.
You're the target audience
C.
The commercial is aimed at you
【单选题】Read and choose the best answer to complete the dialogue.Peter: Hi, Jim. What are you busy with these days? Jim: Nothing special. What about you?Peter: I’m looking for a part-time job. Yesterday, I ju...
A.
I don’t like the job
B.
I want to take the job
C.
the job is not what I want
D.
I’m wondering whether I should take the job or not
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