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【简答题】
A: Hello. Can I speak to Andrea, please? B: ___1___ ____2___ she's not here at the moment. Can I ___3___ a ___4___? A: Yes, please. ___5___ ____6___ Jacques from Intec. ___7___ you ___8___ her I won't be able to ___9___ the training course on Saturday. She can ___10___ me ___11__ if there's a problem. I'm ___12___ 10914980001. B: Ok.Thank you. Bye.
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【单选题】下列有关青霉素G叙述中错误的是()
A.
为有机酸，难溶于水，常用其钠盐或钾盐
B.
粉针剂性质稳定，易溶于水，但水溶液性质极不稳定
C.
不耐热，室温中24小时大部分破坏失效，故临用时配制
D.
耐酸，常口服给药
E.
抗菌作用决定于β-内酰胺环
【简答题】线路交换技术的优点是数据传输可靠、迅速,数据不会丢失且保持_______;缺点是在某些情况下,线路空闲时的信道容易被_______:因此,它适用于系统间要求高质量的_______数据传输的情况。
【简答题】请听下面一段材料，回答第1-2题。 1. What can we know about Cheng Naishan? [ ] A. She was born in Hong Kong. B. She shows great interest in new Shanghai. C. She is the author of Shanghai Lady. 2. How did the woma...
【简答题】Dear Dongdong I have been in Hong Kong for a whole week. I will stay here for another week. Hong Kong is really a great place to visit. There’s so much to see and do here. And I’ve done so many wonder...
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