在受力钢筋直径30倍范围内(不小于500mm)，一根钢筋( )接头。
A．只能有一个
B．不能多于两个
C．不能有接头
D．不能多于三个
参考答案：A
句型转换。
1. He did his homework after dinner. (改为一般疑问句)
____ he ____ his homework after dinner?
2.The beaches were beautiful. (对划线部分提问)
____ ____ the beaches?
3. I stayed at home last weekend. (对划线部分提问)
____ you ____ last weekend?
4. They had some money for a taxi. (改否定句)
They____ ____ ____ money for a taxi.
5. How was the weather in your city? (改为同义句)
____ ____ the weather ____ in your city?
下列哪个药物的利尿作用迅速且强
A．螺内酯B．乙酰唑胺C．氯噻酮D．呋塞米E．依他尼酸
