智慧职教: Knives stay in the left hand and forks in the right.
举一反三
- Knives stay in the left hand and forks in the right. A: 正确 B: 错误
- The people of Malay, India or Indonesian greet, wave or eat with their _____ hand, but use their _____ hand with the bathroom. A: right, left B: left, right C: left, left D: right, right
- The server serves with the right hand, and picks up with the left hand
- Use the knives and forks from outside in
- 函数$z=\arcsin\dfrac{1}{~\sqrt{x+y}~}$的定义域为( ) A: $\left\{(x,y)\left|~x+y\geq<br/>0\right.\right\}$; B: $\left\{(x,y)\left|~x+y\geq<br/>1~\text{或}~x+y\leq<br/>-1 \right.\right\}$; C: $\left\{(x,y)\left|~x+y\geq<br/>1\right.\right\}$; D: $\left\{(x,y)\left|~x+y\geq<br/>\dfrac{4}{~\pi^2~}\right.\right\}$．