单选题：Boys miss more school hours each year due to dental-related

题目内容：

Boys miss more school hours each year due to dental-related illness. A．Right
B．Wrong
C．Not mentioned

参考答案：

答案解析：

The attraction of two large stars leads to gravity.

The attraction of two large stars leads to gravity.A．Right B．Wrong C．Not mention

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The judges must exercise the power to end the case.A．make B．use C．have D．watch

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