【单选题】What is the purpose of each paragraph in the report? 1 The bar chart illustrates the amount of money contributed to the Egyptian economy by three sectors over 21 years. Overall, there was an increase ...
A.
introduces the topic of the data and provides details such as amounts which show the main trends.
B.
introduces the topic and provides a general overview of the main trends in the data without any specific details.
C.
introduces the topic of the data and provides the writer’s opinion about the data.
【单选题】An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes?().
A.
Their bearing is almost constant,even when the true bearing of the contact changes appreciably
B.
They always appear on a bearing of 90°from the true bearing of the contact
C.
The indirect echoes usually appear in shadow sectors
【单选题】An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes? ()
A.
Their bearing is almost constant,even when the true bearing of the contact changes appreciably
B.
They always appear on a bearing of 90°From the true bearing of the contact
C.
The indirect echoes usually appear in shadow sectors