皮皮学，免费搜题
登录
搜题
【判断题】
《化学品安全技术说明书》的内容,从该化学品制作之日算起,每三年更新一次。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
【简答题】The traditional Chinese lunar calendar divides the into 24 solar terms( 节气 ).Awakening of Insects falls on March 6 and ends on March 20 this year. Awakening of Insects 1 a rise in temperature and incr...
【单选题】Who can tell me the reason ____ we see the lightning before we hear the thunder?
A.
which
B.
why
C.
where
D.
that
【简答题】I. Fill in the blanks with proper prepositions. 1. He was indifferent _______ his personal appearance even in formal situations. 2. Something is wrong _______ her eyesight. 3. Students should not be t...
【简答题】Alex saw some________(mouse) running across the floor. 2. We have four ________(class) this morning. 3. Accurate ______(datum) covering the fact are not obtainable. 4. Thunder and lightning are _____...
【单选题】下列三个结论中正确结论的个数是 (1)函数f(x)= 的定义域是(1,2) (2,3); (2)若
A.
3
B.
2
C.
1
D.
0
【单选题】下列三个结论中正确结论的个数是 (1)在等差数列{ }中, , ,则公差d=2; (2)在等比数列{ }中, , ,则 ; (3) 是数列 中的一项。
A.
3
B.
2
C.
1
D.
0
相关题目：