双代号网络图符号表示的工作之间逻辑关系是（）。 A．A、B、C三项工作同时开始 B．

第二节语法填空（共15小题；每小题1分，满分15分）

根据照句子结构的语法性，在下面空格处填入一个适当的词语或使用括号中词语的适当形式填空, 并将答案填写在答题卡标号为31~45的相应位置上。

第二节语法填空

31. Tom looked at me ______ (curious), he wanted to know everything.

32. There are _______ (variety) kinds of plants in the world.

33. He couldn’t afford the fare, so he had to earn his passage _______ doing jobs on the ship.

34. Whether it will do us harm or good still _______ (remain) to be seen.

35. She is always complaining, for she is not content _______ what she has had.

36. When the day breaks, the soldiers found themselves _______ (surround) by their enemies.

37. -- Must I finish my paper before 4 o’clock?

-- No, you ______. You may hand it in tomorrow.

38. Van Gogh was ______ unique painter for his painting style was quite different from others.

39. The discovery of new evidence led to the thief _______(catch).

40. _______ needs further discussion whether we can raise money for the Hope Project.

41. He couldn’t say a word when he heard the _______ (disappoint) news.

42. That they won the game was _______ we had expected.

43. She always criticized Tom, _______ made him very unhappy.

44. _______(see) I was angry, she stopped talking and left.

45. Helen ______(leave) her key in the office, so she had to wait until her husband came back.

固位形不包括（）。

A.侧壁固位

B.倒凹固位

C.鸠尾固位

D.梯形固位

E.粘接固位

某轮计划利用转向点附近某物标正横确定转向时机右转20°，如船舶接近转向点前发现本船偏左，则该轮应（）。

A．适当提前转向

B．适当推迟转向

C．物标正横时转向

D．定位确认抵达预定转向点后转向

如图所示，一个带正电的绝缘金属球壳A，顶部开一小孔，有两只带正电的金属球B、C，用金属导线连接，让B球置于球壳A内的空腔中，与内表面接触后又提起，C球放置在A球壳外，待静电平衡后正确的判断是（）

A.B、C两球都不带电

B.B球不带电，C球带电

C.让C球接地后，B球不带电

D.让C球接地后，A球壳空腔内的场强为零

专题地图表示办法中，质底法和范围的相同点是（）。

A.都只表示现象的数量特征

B.都表示连续分布、满布于整个区域的面状现象

C.都表示间断成片分布的面状现象

D.都只表示质量特征