US President Biden flew to the Middle East in a hurry, but still failed to prevent the tragedy from happening.On the 17th, local time, the "Ahli Arab Hospital" (also known as Baptist Hospital) in Gaza City, Gaza Strip was attacked by air, killing at least 500 Palestinians. Jordanian Foreign Minister Safadi announced in the early morning of 18th that he would cancel the quadripartite summit with the United States, Egypt and Palestine.At the meeting in Jeddah, Iran's foreign minister stressed the need to sanction Israel, impose an oil embargo and withdraw its ambassador.Affected by this, the risk aversion warmed up across the board. The price of spot gold once climbed to $1,962/oz, and WTI crude oil once surged to $88.57/barrel. At present, both of them have declined.Of course, due to the fe