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【判断题】
动车组列车只发售二等座车学生票,学生票为全价的50%。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】#include class A { public: A(){ver=’A’;} void print() {coutprint(); } void main() { A a; D1 d1(4); D2 d2(100); D3 d3(-25); print_info(&a); print_info(&d1); print_info(&d2); print_info(&d3); }
【单选题】Which statement of the following is NOT true about the flower clock according to the third paragraph?
A.
It is the place where people like to take pictures.
B.
It is famous for its decoration with flowers.
C.
It reminds us that the first Swiss clocks and watches were made in Geneva.
D.
The flower clock has the longest arm for seconds in the world.
【简答题】用人工方法除尽细胞壁的细菌称为( ),未除尽细胞壁的细菌称为( ),因在实验室中发生缺壁突变的细菌称为( ),而在自然界长期演化中形成的稳定性缺壁细菌则称为( )。
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