单项选择 适中0.65 引用8 组卷134
The ______ of new inventions(发明) should be to make life easier, not to make it harder.
| A．rules | B．subjects | C．secrets | D．purposes |
14-15八年级下·江苏扬州·期末
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My best friend exercises every day，so he is always full of ________.
| A．wisdom | B．choice | C．knowledge | D．energy |
________ like playing basketball and badminton are popular with students.
| A．Meetings | B．Lessons | C．Activities | D．Books |
The ________ of the world is growing larger and larger. As a result, the burden of the earth is becoming heavier and heavier.
| A．population | B．pollution | C．protection |
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