智能仪器的键盘常采用非编码式键盘结构,有独立式键盘和()式键盘,若系统需要4个按键,应采用()键盘结构。
参考答案:矩阵式;独立式
Ⅴ单词拼写
76..As he has no opportunity to achieve his a________, he intends to leave from the company.
77.. When something can help people or improve their lives, we say it is ________ (有益的) to people.
78.. I’m interested in the classical ___________(文学) of France.
79.. I offer you my hearty c______________ on your success.
80.. They will __________(宣布) the results of the election soon.
81.. Tom and Jane want to get d__________ .That means they intend to end their marriage.
82..To his ______________ (满意), he passed the examination.
83..His strength was s__________ to death.
84.. The clouds were r______________ in the lake. Didn’t you see them?
85..The sailor had to a___________ the sinking ship.
如按房屋租金计征房产税,其税率为( )。
A.12%
B.6%
C.1.2%
D.3%