①乒乓球队原有15个乒乓球.
②又买来30盒.
③每盒6个.
问题1:____
问题2:____
— You are wanted on the phone. — __________ nobody knows I'm here.
He ____the challenge of joining in the 2017 Wuxi Marathon in his sixties.
常温下,下列溶液可用铝制容器盛装的是()