関連ワード:
which of the following is a soft metal which of the following is a soft metal sodium cobaltinitrite which one of the following is a soft metal which of the following is not a soft metal which of the following is a soft gray metal which among the following is a soft metal which of the following are very soft metals which of the following metals is soft in nature which of the following is a soft metal that can be cut with a knife which of the following metals is soft enough to cut with a knife
