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【简答题】
求函数y＝sin 4 x＋2sin xcos x－cos 4 x的最小正周期和最小值；并写出该函数在[0，π]上的单调递增区间
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【简答题】请简单描述下该程序的功能 package tarena.com; public class Student { private String name ; private String cla ; private int score ; public Student() { super (); } public Student( String name, String cla, int score...
【单选题】Who is that beautiful woman? -- Mrs Li. She teaches _____ English very well. She always makes her classes______.
A.
our;, interesting
B.
us; boring
C.
us; lively
D.
our, surprising
【单选题】如下代码用于把班名和班号绑定到下拉列表控件中,请把程序填写完整: private void Bindclass() { string sql = "SELECT banhao, banming FROM t_class"; SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["testdataC...
A.
ddl_cla.DataValueField = banhao ； ddl_cla.DataTextField = banming ；
B.
ddl_cla.DataValueField = "banhao" ； ddl_cla.DataTextField = "banming" ；
C.
ddl_cla.DataValueField =banming ； ddl_cla.DataTextField = banhao ；
D.
ddl_cla.DataValueField ="banming" ； ddl_cla.DataTextField = "banhao" ；
【单选题】— Who’s that boy reading in the garden? Is it David? — It ____________ be David. I saw him in the classroom just now．
A.
must
B.
can’t
C.
may
D.
shouldn’t
【简答题】A Brown University sleep researcher has some advice for people who run high schools: Don’t start classes so early in the morning. It may not be that the students who nod off at their desks are lazy. A...
【简答题】二次文献又称检索工具,包括
【单选题】有如下程序:执行后的输出结果应该是: #include class cla{ static int n ; public: cla(){n++ ;} ~cla(){n-- ;} static int get_n(){return n ;} } ; int cla::n=0 ; int main() { cla * p=new cla ; delete p ; cout< ; return 0 ; ...
A.
n=0
B.
n=1
C.
n=3
D.
n=4
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