皮皮学，免费搜题
登录
搜题
【单选题】
人体中含量在0.01%以下的元素,称为微量元素,下列元素不属于微量元素的是( )A.
铁
B.
锌
C.
碘
D.
碳
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】下列叙述中,错误的是
A.
内存储器一般由ROM和RAM组成
B.
RAM中存储的数据一旦断电就全部丢失
C.
CPU不能访问内存储器
D.
存储在RO中的数据断电后也不会丢失
【简答题】The thieves were ____ by the police as
they were entering the bank.
【单选题】They could see three fine streams of hot water spouting from holes in the jacket of the radiator.
A.
They could see three thin flows of hot water coming out of holes in the outer cover of the radiator.
B.
They could see three beautiful flows of water gushing out of holes in the outer wear of the radiator.
C.
The could see three beautiful jets of water pouring from the holes in the outer cover of the radiator.
【单选题】In a ______boiler the hot gases from the furnace pass through the tubes while the water is on the outside.
A.
water-tube
B.
fire-tube
C.
exhaust gas
D.
Composite
【单选题】下面说法正确的是
A.
所有公文的标题，发文机关、事由、文种缺一不可
B.
拟写标题时，为了简练可以不标文种
C.
所有公文的标题，都可以省略发文机关及事由
D.
公文标题一般不用标点符号
【多选题】下面说法正确的是
A.
宏定义可以简化书写
B.
宏定义最终还是要被换回它所代表的字符
C.
有参数的宏定义，其参数不占内存空间
D.
用不用宏定义，对最终的exe文件没有影响
相关题目：