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【单选题】
下图中幼虫为一种地下害虫,多足型,请问是哪类昆虫幼虫
A.
蝼蛄
B.
地老虎
C.
蛴螬
D.
金针虫
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【单选题】三成熟牛扒的成熟度英文表示为______ 。
A.
Rare
B.
Medium rare
C.
Medium
D.
Medium well
【单选题】某科研单位面临着一个是否承担及如何承担一项科研任务的选择。在经过耗资40万元的调查和论证后,能争取到任务的概率为40%;如用260万元进行开发设计,其成功的概率为80%,成功能获利600万元;失败的概率为20%,失败罚款100万元;如采用老设备改造方法,要耗资160万元,成功与失败的概率各为50%,成功能获利600万元,失败罚款同样为100万元。将这些绘制决策树如图16-2所示。在图16-2中,P...
A.
平均收益
B.
最大收益
C.
最可能收益
D.
收益期望
【单选题】选择句子,补全对话。
A.
Thank you
B.
What did you buy for your grandpa
C.
Where did you go yesterday
D.
What did you do yesterday
E.
What was the matter
F.
How did he feel
G.
Are you going to visit him tomorrow John: Good morning, Tom. Tom: Good morning, John. John: You didn't go to school yesterday. ___________________? Tom: I went to visit my grandpa. He didn't feel well. John: ___________________? Tom: He had a cold. John: Oh, I'm sorry to hear that. ___________________? Tom: I bought a cake for my grandpa. John: ___________________? Tom: Yes, I'm going to see my grandpa tomorrow. John: I hope he will be better soon. Tom: ___________________.
【单选题】某科研单位面临着一个是否承担及如何承担一项科研任务的选择。在经过耗资40万元的调查和论证后,能争取到任务的概率为40%:如用260万元进行开发设计,其成功的概率为80%,成功能获利600万元;失败的概率为20%,失败罚款100万元;如采用老设备改造方法,要耗资160万元,成功与失败的概率各为50%,成功能获利 600万元,失败罚款同样为100万元。将这些绘制决策树如图20-5所示。 在图20-2中...
A.
平均收益
B.
最大收益
C.
最可能收益
D.
收益期望
【简答题】选择句子,补全对话。 A. Thank you. B. What did you buy for your grandpa C. Where did you go yesterday D. What did you do yesterday E. What was the matter F. How did he feel G. Are you going to visit him tomorro...
【单选题】β 1 受体主要存在与( )
A.
瞳孔开大肌
B.
血管
C.
支气管
D.
膀胱平滑肌
E.
心脏
【单选题】对食物热效应的描述,不正确的选项是( )。
A.
蛋白质)脂肪
B.
蛋白质)碳水化合物
C.
进食慢者)进食快着者
D.
脂肪)碳水化合物
【简答题】阅读下面对话,从方框中选择适当的句子补全对话(其中有两项是多余的)。 A. Sure, I’d love to. B. Hi, John. It’s Marry. So, what’s up? C. How can you do that? D. Thank you for your good advice. E. Of course, you are right. F. Do...
【单选题】“竹节状”是经常用来形容下列哪个细菌形态的:
A.
破伤风梭菌
B.
产气荚膜梭菌
C.
肉毒梭菌
D.
艰难梭菌
E.
炭疽芽胞杆菌
【简答题】情景交际 A. I know where it is. B. What are you doing? C. Do you want to come over to my house? D. OK.Where is your house? E. Do you want to buy something to eat? F. OK. I'll see you at two thirty. G. Wha...
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