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【判断题】
商业汇票根据承兑人的不同分为银行承兑汇票和商业承兑汇票。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】It can be inferred from the text that the author believes that _____.
A.
nationwide application of anti-pollution devices can finally prevent cancer.
B.
tough legislation is needed to set lower limits of worker exposure to harmful chemicals.
C.
more research is required into the causes of cancer before further progress can be made.
D.
industrialization must be slowed down to prevent further spread of cancer-causing agents.
【简答题】数控机床的 T 指令是指 。