[问答题]
In (Fig. Below), a long straight wire carrie-7;gt;;jmqu cg ;jn9pd/zj gg s current I out of the page towb+ 3fznd;le5yard you. Indicate, withf;z3 dn bye5+l appropriate arrows, the direction of $\vec{\mathbf{B}}$ at each of the points C, D, and E in the plane of the page.
