What ___________ they eat?[ ]
A. are
B. do
C. is
答案：B
根据短文内容及首字母提示，完成下列单词拼写。
I have a g______(1) friend in my school. Her n______(2) is Li Ying. She gets up early every day.
She likes to b______(3) early. She does morning exercises a______(4) she gets up at six. Then she
washes her hands a______(5) face. She has breakfast at a______(6) six forty. She leaves home at 7
o'clock. C______(7) begin at ten to eight. And she has four classes in the morning and two in the
a______(8). At 3:30 she plays games with her f______(9). She gets home at 5:30. She often watches
CCTV news at 7:00 in the evening. And she goes to bed at ten e______(10) night.
1._____ 2._____ 3._____ 4._____ 5._____
6._____ 7._____ 8._____ 9._____ 10._____
从经济效益和环境保护考虑，大量制取硝酸铜最宜采用的方法是 [ ]
A．Cu + HNO3（浓）→ Cu(NO3)2
B．Cu + HNO3（稀）→ Cu(NO3)2
C．CuCuSO4Cu(NO3)2
D．CuCuOCu(NO3)2
CuSO4
Cu(NO3)2
CuO
Cu(NO3)2