皮皮学,免费搜题
登录
搜题
【简答题】
Listen to the following passage by filling in the blanks with what you hear. Jacques Cousteau was born in (1) in (2). Cousteau loved the water, and for almost sixty years, he studied the world’s oceans. In (3), he and a partner invented SCUBA diving equipment, and later he invented special cameras to ( 4 ) life underwater. Cousteau taught people about the oceans. In (5), he started a TV show called The Undersea World of Jacques Cousteau. On the show, he traveled with his son, Philippe, around the world. They taught people about sea animals and protecting Earth’s waters. In (6), he started the Cousteau (7), an international organization which works to protect Earth’s waters. Before he died in (8), Cousteau won many ( 9 ) for his films and his work as an environmentalist. Jacques’ family have continued his work. Jacques’ son, Philippe had two children, Alexandra and Philippe Junior. They are both famous ocean ( 10 ). Like her grandfather, Alexandra Cousteau, who was born in (11), also cares about the world’s seas. In (12), she started a company with her brother called Earth Echo International. It teaches children and teenagers about keeping Earth’s oceans clean. Later, in (13), Alexandra started another company called Blue Legacy. It works to protect Earth’s oceans. As the head of this company, she travels around the world, working on important water problems. In (14), she got an award for her work as an (15).
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
【多选题】下列各种弱酸、弱碱,能否用酸碱滴定法直接测定 ?
A.
CH 2 ClCOOH的 pKa 为 2.86
B.
苯酚 的 pKa 为 9.95
C.
苯胺 pKb 为 9.34
D.
HF 的 pKa 为 3.46
E.
苯甲酸 的 pKa 为 4.21
【单选题】设有定义: int x=2; 以下表达式中,值不为 6 的是
A.
2*x, x+=2
B.
x=2*x, x+=2
C.
x*=(1+x)
D.
x*=x+1
【单选题】轮胎的层级是表示
A.
轮胎帘布层实际层数
B.
帘布层厚度
C.
轮胎承载能力的相对指数
D.
帘布的质量等级
【简答题】设有定义: int x=2; 以下表达式中,值不为6的是A. 2*x, x+=2 B. x++,2*x C. x*=(1+x) D. x*=x+1
【单选题】下列各种弱酸、弱碱,能用酸碱滴定法直接滴定的是:
A.
0.01 mol•L CH 2 ClCOOH ( K a =1.4×10 -3 )
B.
1 mol • L H 3 BO 3 ( K a =5.7×10 -10 )
C.
0.1 mol • L ( CH 2 ) 6 N 4 ( K b =1.4×10 -9 )
D.
0.1 mol • L C 6 H 5 NH 2 ( K b =4.6×10 -10 )
【单选题】设有定义:int x=2;以下表达式中,值不为6的是
A.
x*=x+1
B.
x++,2*x
C.
x*=(1+x)
D.
2*x,x+=2
【单选题】设有定义: int x=2; 以下表达式中,值不为6的是
A.
x*=(1+x)
B.
x*=x+1
C.
x++,2*x
D.
2*x, x+=2
【单选题】关于痉挛患者局部缓解痉挛脊柱两侧缓慢轻擦法不正确的是 ( )
A.
操作部位:背部脊柱两侧
B.
手法:操作人员用两手交替进行轻擦
C.
患者体位:患者呈仰卧位或坐位
D.
手法要求:缓慢.连续.略施轻微压力
E.
持续时间:一般为3分钟
【单选题】下列各种弱酸、弱碱,能用酸碱滴定法直接滴定的是:
A.
0.01mol·L -1 CH 2 ClCOOH(K a =1.4x10 -3 )
B.
1molL· -1 H 3 BO 3 (K a =5.7x10 -10 )
C.
0.1mol·L -1 (CH 2 ) 6 N 4 (K b =1.4x10 -9 )
D.
0.1mol·L -1 C 6 H 5 NH 2 (K b =4.6x10 -10 )
【简答题】下列各种弱酸、弱碱,能否用酸碱滴定法直接测定?如果可以,应选用哪种指示剂?为什么? 苯甲酸,HF,吡啶,六亚甲基四胺
相关题目: