Please choose the correct answer!
请选择对的答案~答案只有一个！
II. Listen and choose the correct answer.
听情景对话，选择正确答案。
Choose the correct answer for each question.
请选择每道问题的正确答案。
Choose the one answer which you think is correct in the following.
在下列句子里选择一个你认为正确的答案。
About the control valve, apart from the anti-corrosion materials, how to choose the correct construction to suit the producing environment is a real problem, this paper can tell you the answer.
对于调节阀，除防腐蚀材料的选取外，怎样选择正确的结构来适应生产环境的要求是一个值得关注的问题。
Choose the correct security question and answer that you filled in during registration and we will send an email to you with your sign-in details.
选择正确的安全问题和答案填写在注册过程中，我们将发送一封电子邮件给您与您的登录详细信息。
Choose the correct security question and answer that you filled in during registration and we will send an email to you with your sign-in details.
选择正确的安全问题和答案填写在注册过程中，我们将发送一封电子邮件给您与您的登录详细信息。
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