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【单选题】
After Jack had sent some e-mails, he _______ working on his project. [ ]A.
had started
B.
has started
C.
started
D.
starts
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反馈参考答案：
举一反三
【简答题】螺纹按牙型角分为矩形螺纹 、三角形螺纹、 梯形螺纹、 。
【单选题】What is the correct order of the following statements to make an argument?Particular cultures are under threat nowadays due to the fact that we are living in a global village. What do you think can be...
A.
d-b-c-a
B.
b-a-c-d
C.
d-a-b-c
D.
b-d-a-c
【简答题】螺纹按牙型角分为矩形螺纹 、 、 梯形螺纹、 锯齿形螺纹。
【单选题】舌接劈砧木，将砧木在嫁接部位剪断，先削1个( ) 长的斜面，从削面上端1/3处顺砧 木纵切1cm长的切口
A.
1～2cm
B.
2～3cm
C.
3～4cm
D.
4～5cm
【单选题】An argument that does not give any good reason to believe its conclusion can still persuade someone to believe its conclusion.
A.
True
B.
False
【单选题】He merely meant to give his opinion, not to start an argument.
A.
simply
B.
sincerely
C.
actually
D.
definitely
【判断题】When an argument is used for explanation, its purpose is to give a reason to believe that its conclusion is true.
A.
正确
B.
错误
【判断题】When an argument is used for explanation, its purpose is to give a reason to believe that its conclusion is true.()
A.
正确
B.
错误
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